Autograph letter signed ("Thinking of You. Eternally your friend, Tupac"), to Cosima [Knez], [Marin City, California], 13 November, 1988.-Tupac-Shakur (亲笔签名信签名(“想你,永远是你的朋友,图帕克”),致加利福尼亚州马林市科西马[Knez],1988年11月13日。-图帕克)
Autograph letter signed ("Thinking of U! Eternally your friend, Tupac A. Shakur"), to Cosima [Knez], [Marin City, California, ca spring 1989].-Tupac-Shakur (亲笔签名信(“永远想念你!永远是你的朋友,图帕克·A·沙库尔”),致科西玛[Knez],[1989年春,加利福尼亚州马林市]。-图帕克)