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1870年宾夕法尼亚州伊利县伊利市鸟瞰图`Bird\’s eye view of the city of Erie, Erie County, Pennsylvania 1870 by Ruger
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宾夕法尼亚州阿姆斯特朗县福特市,1896年`Ford City, Armstrong County, Pennsylvania, 1896 by Fowler Thaddeus Mortimer
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1907年宾夕法尼亚州费城Wissahickon Manayunk鸟瞰图`Birds eye view of Manayunk, Wissahickon, Philadelphia, Pennsylvania 1907 by Fowler Thaddeus Mortimer
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宾夕法尼亚州蒙哥马利县罗耶斯福德1893`Royersford, Montgomery County, Pennsylvania 1893 by Fowler Thaddeus Mortimer
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