图片文件像素：4698 x 4418 px

Heinz Mack，当代艺术I-

Heinz Mack * - Zeitgenössische Kunst I-

(born in Lollar, Hessen 1931)
Wing relief, 1989, signed, dated Mack 89, on the reverse again signed, dated, inscribed and with directional arrow, relief of aluminum grid, board and mirror, 81.5 x 101.5 cm, framed

Certificate:
Atelier Mack, Mönchengladbach, signed by the artist

Provenance:
Private Collection, Rhineland Palatinate
Private Collection, North Rhine-Westphalia - acquired from the above in 2006
Private Collection, Venice
Ketterer Kunst, Munich, 5 December 2006, lot 335

Literature:
Exhibition catalogue Galerie Ludorff, Düsseldorf 2020, p. 88

The Zero artist Heinz Mack discovered the effect of light on a piece of aluminium foil by accident. When he stepped on a piece of the foil lying on the floor, he created a carpet of light, a light reflector with the embossed pattern of his sisal carpet. This showed him how the light from the aluminium foil refracts and at the same time reflects the embossed pattern of the carpet. From then on, the effect of light in his works played a decisive role for Heinz Mack in the conception of his art. The character of the reliefs is that they capture the light and at the same time return it to the room.

The work offered here is from the series of so-called ‘wing reliefs’ (Flügelreliefs). Here Mack - unlike in his painting - does not experiment with colour, but with material and form, with the reflection and location of the viewer in the work. Mack uses a fine-meshed flexible expanded metal aluminium fabric for his wing reliefs, originally created for the aerospace industry. Its technical materiality allow the metal mesh to be given soft contours and to form varied patterns from the individual honeycombs. The artistic intention of making light, structure and movement visible is accentuated in a special way in the wing reliefs by the fine structure of the honeycomb fabric.

The structure of the relief allows the viewer to experience the refraction of light from different angles anew each time. The light refracts in the depths of the honeycombs and captivates the viewer.

图片文件像素：5357 x 5537 px

阿里吉耶罗·波提-

Alighiero Boetti * - Zeitgenössische Kunst I-

(Turin 1940–1994 Rome)
Naturale Artificiale, 1982, 2 parts, ballpen on paper laid on canvas / biro su carta intelata, each 100 x 70 cm, on stretcher (2)

The work is registered in the Archivio Alighiero Boetti and is accompanied by a photo certificate of authenticity, Rome, 30 May 2007

Photo-certificate, issued by La Bertesca/c.o. Masnata, Genoa, signed by the artist, Rome, October 1983

Provenance:
The artist Francesco Masnata, Genoa (formerly Galleria La Bertesca)
Private Collection, Southem 德国y – acquired directly from the above in the late 1990s

Literature:
Jean-Christophe Ammann, Alighiero Boetti, Catalogo generale, Vol 3, Milan 2015, Vol. 3, no. 1391 (with color illustration)

The work NATURALE ARTIFICIALE comes from Alighiero Boetti\'s biro drawings series. The artist created unique artistic narratives through play, poetry, measure, numbers, order and disorder, which he combined with material diversity, conceptual complexity, and extraordinary visual beauty. Boetti began his biro series in the 1970s, when he created entire sheets collaboratively using different coloured biro ink. Each work in the series contains panels of images created by different students, similar to Boetti\'s well-known tapestries. With a consistently playful approach to \"simple\" ideas, Boetti posed fundamental questions about contemporary art production. The liminal space between artist and author is a major concern in Boetti\'s catalogue of works.

The biro work offered here is a diptych of two sheets hand-coloured with red biros. Looking at the diptych as a whole, the irregular structure, gradations and patterns become apparent. Latin letters are arranged in alphabetical order on the left edge of the picture. Distributed over the two halves of the picture are small white commas in a seemingly arbitrary arrangement. A closer look at the signs reveals that they each correspond to one of the letters of the alphabet. When read in sequence from left to right, they themselves spell out the work’s title NATURALE ARTIFICIALE. Boetti\'s biro works are generally abstract images that name themselves.

\"My works arise from changing forms of collaboration. I am interested in primary things like the alphabet, maps, newspapers - not least because of the sudden surge of order and disorder. Everything has its own precise order, even if that order is realised in a disorderly way.\"
Alighiero Boetti

图片文件像素：6353 x 5789 px

克里斯托（Javacheff Christo，当代艺术I-

Christo * (Javacheff Christo) - Zeitgenössische Kunst I-

(Gabrovo, Bulgaria 1935–2020 New York)
Wrapped Snoopy House (Collage), 2004, signed, dated Christo 2004, cloth, threads, charcoal, pencil, color crayon, paint and adhesive tape on cardboard, 61.2 x 55 cm,
framed under plexiglass

The wrapped Snoopy House is registered in the Christo and Jeanne-Claude Archives, New York.

We are grateful to Jonathan Henery, Christo and Jeanne-Claude Archives, New York, for his scientific support in cataloguing the work.

Provenance:
Studio of the artist
Collection of the printer and fabricator Jack Lemon, Chicago
Private collection, 德国y

Literature:
This work is the prototype for the multiple, published by Schulz Museum, Santa Rosa, California see: Matthias Koddenberg, Jörg Schellmann: Christo and Jeanne-Claude: Prints and Objects. Catalogue Raisonné, p. 213, no 188

Charles M. Schulz (1922-2000) was the cartoonist of the globally successful comic series \"Peanuts\". The 美国 author and illustrator portrayed 美国 suburban life from the perspective of a group of children in the daily comic strips, which ran for decades. Peanuts was special in that it combined pointed wit with philosophical reflection.

Most of the comic strips focus on the main characters Charlie Brown and his dog Snoopy. Snoopy, the white dog with the black floppy ears, is now considered an integral part of our popular culture.
Snoopy lives in a kennel in Charlie Brown\'s garden. There, the beagle spends most of his time lying lazily on the roof of his hut, the so-called Snoopy Dog House, pondering his philosophical thoughts while waiting for his next meal.

In 1975, Charles M. Schulz met the packaging artists Jeanne-Claude and Christo at a discussion group in Colorado. The cartoonist then paid tribute to the artist couple by creating a Peanuts comic strip in 1978 in which Christo wraps Snoopy‘s House in fabric. In the comic strip, Snoopy wonders what Christo will cover next and finds his house wrapped at the end of the sequence. Christo returned the cartoonist\'s compliment by turning the comic image into reality decades later, designing a life-size, three-dimensional doghouse for the Charles M. Schulz Museum and wrapping it in tarpaulin, polyethylene and rope.
The work offered here is an original collage with real fabric wrapping, created by Christo in 1994 as a prototype for the later multiple. The multiple is number 188 in the catalogue raisonné.
This original work came from the estate of printer Jack Lemon, who founded his life\'s work, the Landfall Press, in Chicago in 1970. Lemon and his team printed lithographs by Christo, Philip Pearlstein and Sol LeWitt, among others.

图片文件像素：5925 x 4626 px

Jií（Georg）Dokoupil，当代艺术I-

Jiří (Georg) Dokoupil * - Zeitgenössische Kunst I-

(born in Krnov 1954)
Mis Mus Sian, 2014, titled, several times signed Dokoupil on the overlap, soap-lye and pigments on canvas, 250 x 300 cm or 300 x 250 cm (the work can be hung vertical or horizontal), on stretcher

Provenance:
Studio of the artist
Kasmin Gallery, New York
Private collection, 德国y

Literature:
Kasmin Gallery, Jiří (Georg) Dokoupil, New paintings,
exhibition catalogue, New York 2015
Jiří Georg Dokoupil, Soap Bubble Paintings, Berlin 2015

Exhibited:
Kasmin Gallery, New York, Jiří (Georg) Dokoupil, New paintings,
8 January - 7 February 2015

Jiří (Georg) Dokoupil has been putting his art on canvases since the 1970s - and for much of that time without a brush. He constantly reinvents the production of artworks, expresses his creativity with the most diverse materials, such as breast milk or fruit juices, and thinks \"outside the box\". His oeuvre now comprises about 140 series, which are not at all alike. He is a quick-change artist in the contemporary art world. Like a pop culture star, he completely reinvents his art with each series.

The early flight from his homeland and the associated deprivation of a national, social and personal identity meant the artist never developed a fixed style of his own. (Compare Wilfried Dickhoff, Soap Bubble Thinking, p.5, in: Jiří (Georg) Dokoupil..

Soap Bubble Paintings, Berlin 2015)
The Soap Bubble Paintings series is one of his longest-running series. The work offered here, \"Mis Mus Sian\", is part of it.

Standing on a ladder with a metal hoop, Jiří (Georg) Dokoupil. lowers his soap bubbles onto the canvas. He uses soap suds mixed with shimmering pigments, the exact composition of which he keeps strictly secret. The individual layers of soap bubbles, their shimmering pigments and superimpositions create a sphere of their own. The result is a depth undreamed of in a two-dimensional work, which can only be properly experienced through viewing the work in person. The soap bubbles glitter dynamically on the deep blue background of the painting and evoke movement through their different shapes and orientations. Due to the enormous format of over 250 x 300 cm, the experience of the work is like visiting a giant aquarium. At first, one is overwhelmed by the work’s abundance and appearance and, as time goes by, one dives deeper and deeper into its cosmos. The artist leaves it up to the owner to hang the work in portrait or landscape format. For this reason, he has signed the reverse on two sides.
„It’s all about making something that is not doable“
Jiří (Gerog) Dokupil

图片文件尺寸 : 4305 x 5773px

HARVEY, WILLIAM. 1578-1657; and ZACHARIAH SYLVIUS. 1608-1664.:The anatomical exercises of Dr. William Harvey ... concerning the motion of the heart and blood. WITH: SYLVIUS, ZACHARIAH. The preface ... upon the anatomical exercises of Doctor William Harvey. WITH: DE BACK, JACOBUS. The Discourse. HARVEY, WILLIAM. Two anatomical exercitations concerning the circulation of the blood. London: Francis Leach, for Richard Lowndes, 1653.
Small 8vo (144 x 92 mm). 191 leaves. With the cancel title leaf. Ornamental woodcut initials, woodcut or typographical headpieces. Early 20th century calf, spine with 4 raised bands, morocco gilt lettering piece, modern cloth chemise and slipcase. Title page replaced in facsimile, joints starting, first leaf of preface re-margined at gutter, margins closely trimmed with losses to headers, scattered browning and spotting.

FIRST EDITION IN ENGLISH of Harvey\'s De motu cordis presenting his discovery of the circulation of the blood. The translation, described by Keynes as \"a vigorous, if unpolished, version... in contemporary language\", was based upon the Latin edition published at Rotterdam in 1648. Also included in this edition are a translation of James De Back\'s treatise on the blood in which he offers a \"defence of Harvey\'s circulation,\" and Harvey\'s essays (\"Two anatomical exercitations\") written in response to Jean Riolan\'s criticisms. ESTC R20704; Heirs of Hippocrates 422; Keynes, Harvey 19; Krivatsy 5338; Norman 1008; Osler 7698; Wing H-1083; Wellcome III, p 219.

哈维，威廉。1578-1657; 和ZACHARIAH SYLVIUS。1608-1664. 威廉·哈维医生关于心脏和血液运动的解剖练习。与：西尔维乌斯，扎卡里亚。前言…关于威廉·哈维医生的解剖练习。与：德巴克，雅各布。话语。哈维，威廉。两次有关血液循环的解剖学练习。伦敦：弗朗西斯·利奇（Francis Leach），代表理查德·朗兹（Richard Lowndes），1653年。

图片文件像素：4483 x 5098 px

西格马尔·波尔克，当代艺术I-

Sigmar Polke * - Zeitgenössische Kunst I-

(Oels/Niederschlesien 1942-2010 Cologne)
Untitled, 1994, on the reverse signed, dated twice S. Polke 94, natural resin and pigments (malachite, lapis lazuli and realgar) on canvas, 95 x 75 cm, framed

We are grateful to Michael Trier, Cologne, for his scientific advice in cataloguing this work.

Provenance:
Private Collection, North Rhine-Westphalia - directly from the artist
Van Ham Kunstauktionen, Cologne, 01 December 2021, lot 301 - acquired there by the present owner

Sigmar Polke has left us an extensive oeuvre, centred first and foremost on his irrepressible interest in colour. The production of colours was of great importance to the artist, who was often described as an alchemist, and he wanted to explore it from the bottom up. With the aid of the most modern techniques and motifs he was constantly searching for the origin of painting, sometimes also with a great deal of irony. Art ought to be an experiment with an open outcome, and he, the artist, ought to elicit the hidden beauty from the material world with his works.

Polke worked with the so-called \"Schüttbilder\" from the early 1970s on, colour samples and \"Probierbilder\", in which calculated chaos is elevated to a creative principle. Ten years later, Polke\'s painting showed a change \"that was much discussed in connection with the works for the exhibition Zeitgeist in 1982, for Documenta 7 in the same year and reached a climax in his contribution to the 德国 pavilion at the 42nd Venice Biennale (1986). Figuration recedes in favour of the more gestural and process-like use of colour, its lush or veil-like overlays and fusions.\"
(Katharina Schmidt, quoted from: Sigmar Polke – Zeichnungen, Aquarelle, Skizzenbücher 1962 – 1988, exh. cat., Kunstmuseum Bonn 1988, p. 194).

The 1994 work offered here is in the tradition of the colour samples of the 1970s and refers pictorially to the colour plates from 1992, which are in the Stedelijk Museum in Amsterdam. Its presentation is very painterly and overall reminiscent of the wall painting at the Venice Biennale (1986), for which Sigmar Polke was awarded the Golden Lion.

In the present work, the artist mixed a total of three dyes with natural resin and applied them to the canvas. In the lower area, the ultramarine blue of the dark blue semi-precious stone lapis lazuli dominates. Lapis lazuli is one of the oldest pigment stones of all and was already used as pigment in prehistoric Europe. For the upper part of the picture, Polke used the powdered pigment of the semi-precious stone malachite. The coarser the grain, the more intense the shade of colour. Malachite pigment was prized in antiquity as a cold green for wall paintings. It was used in panel paintings in the Renaissance. Next to green earths, malachite was the most important green pigment until the 18th century. On the left-hand side in the central area of the canvas, Polke painted an oval with the chemical pigment realgar. Realgar, also called ruby sulphur or ruby of arsenic, has a changing hue, which depends on the grind of the pigment. The darker shades are an orange-red, the lighter ones a yellow-orange, as seen in this painting. Although there are modern alternatives, Polke seems to have found processing the colours and pigments of the old masters with an awareness of modern times highly interesting.