http://i.amz.mshcdn.com/LWElwxx7jE3vJ0c2KcbPvomyq6I=/fit-in/1440x1440/uploads/2016/6/15/nyphotochrom_12.jpg

“桑树街”。图片:美国国会图书馆

这些纽约市的明信片，底特律的20世纪出版公司生产。使用创新Photochrom流程添加人工颜色，比黑白照片等级精确。瑞士印刷公司的一名雇员Orell Gessner Fussli发明于1880年代，Photochrom是一个严格的和费时的过程。涉及建立一个石印从照片-石,其次是连续使用额外的平的石头——一个为每个色彩加印，形成最终的图像。十多个不同的有色宝石参与生产的一个形象，但结果是非常令人信服的颜色。真彩色摄影时仍在开发的早期阶段。
http://i.amz.mshcdn.com/en6du0cwbwiuJGGGtJw7cAJZDHQ=/fit-in/1440x1440/uploads/2016/6/15/nyphotochrom_1.jpg

“博林格林和百老汇”。http://i.amz.mshcdn.com/PajemEte-ZzofQR6gB1bYvwOXDg=/fit-in/1440x1440/uploads/2016/6/15/nyphotochrom_2.jpg
“炮台公园和纽约港。”

http://i.amz.mshcdn.com/6ppk9S22uhFzLvAnLTGyxe-evI8=/fit-in/1440x1440/uploads/2016/6/15/nyphotochrom_3.jpg

西大街
http://i.amz.mshcdn.com/0gMGBcZswORfrNR83tzcWamPh0A=/fit-in/1440x1440/uploads/2016/6/15/nyphotochrom_4.jpg

南街和布鲁克林桥
http://i.amz.mshcdn.com/FA8PkGIVMVopbyJ2kEXegs5fVsE=/fit-in/1440x1440/uploads/2016/6/15/nyphotochrom_5.jpg

“市政厅”。
http://i.amz.mshcdn.com/Nv-shR5O5xYtWRg9jOG9nh5OK3Q=/fit-in/1440x1440/uploads/2016/6/15/nyphotochrom_20.jpg

圣保罗教堂http://i.amz.mshcdn.com/qX7BCH2gwt6UkDAEK8H_xUUFf7w=/fit-in/1440x1440/uploads/2016/6/15/nyphotochrom_6.jpg

“鲍厄里。”

http://i.amz.mshcdn.com/lYy_FEXwK2m0pG_d5pm9hPYr1eg=/fit-in/1440x1440/uploads/2016/6/15/nyphotochrom_7.jpg

“第110街。”
http://i.amz.mshcdn.com/KuNVsxydQ9GWLZvI4gQspx0jkIY=/fit-in/1440x1440/uploads/2016/6/15/nyphotochrom_24.jpg
“大理石教堂联合会和荷兰的房子。”

http://i.amz.mshcdn.com/P4D6IjGZFMUqz55-eZGzbyCkymk=/fit-in/1440x1440/uploads/2016/6/15/nyphotochrom_8.jpg
“第五大道51街”。

http://i.amz.mshcdn.com/pJ6MHdYkzqb2_aQmEB2j2sH_caw=/fit-in/1440x1440/uploads/2016/6/15/nyphotochrom_9.jpg

http://i.amz.mshcdn.com/XnSoSQpDJYCHlZQnrrq3IZxtFBQ=/fit-in/1440x1440/uploads/2016/6/15/nyphotochrom_10.jpg
”购物中心,中央公园”。

http://i.amz.mshcdn.com/F57HSJD75ZqXLkarSDjP7Jc3eN8=/fit-in/1440x1440/uploads/2016/6/15/nyphotochrom_23.jpg

“中央公园的方尖碑”。

http://i.amz.mshcdn.com/e648JQIwwXoGGilDYfA_qVWqIwY=/fit-in/1440x1440/uploads/2016/6/15/nyphotochrom_11.jpg
“高桥。”
http://i.amz.mshcdn.com/BqNr_-33vaVxz1A2xvhkY1ExXBQ=/fit-in/1440x1440/uploads/2016/6/15/nyphotochrom_13.jpg
“河滨公园和格兰特墓。”

http://i.amz.mshcdn.com/rMRdTG3y53rPfbCc4gi1Vcaj-KU=/fit-in/1440x1440/uploads/2016/6/15/nyphotochrom_26.jpg
“麦迪逊广场。”

http://i.amz.mshcdn.com/YOIGlE1mQ1rOnE2vgio3bQYQQ_U=/fit-in/1440x1440/uploads/2016/6/15/nyphotochrom_14.jpg
“小教堂。”

http://i.amz.mshcdn.com/VAtHFUwDC6z4h92EFX7JDl2aoPU=/fit-in/1440x1440/uploads/2016/6/15/nyphotochrom_15.jpg
“新闻大楼。”

http://i.amz.mshcdn.com/XzkDUPZ-byvm8eMDRRgSvlYthEE=/fit-in/1440x1440/uploads/2016/6/15/nyphotochrom_22.jpg
“世界上最高的建筑。”

http://i.amz.mshcdn.com/YNPr3EHlzHEI9bCEpo4iQSSEH9A=/fit-in/1440x1440/uploads/2016/6/15/nyphotochrom_16.jpg
“麦迪逊广场的海军拱门。”

http://i.amz.mshcdn.com/o7QOWqBlIgejhIM2vxMYtiHRLE8=/fit-in/1440x1440/uploads/2016/6/15/nyphotochrom_18.jpg

“在康尼岛海滩上。”
http://i.amz.mshcdn.com/SxxVskN2cRhtEzvyyMlQFDYspzo=/fit-in/1440x1440/uploads/2016/6/15/nyphotochrom_21.jpg

“第六大道。”
http://i.amz.mshcdn.com/j8NfhwBiLFdsSBI7iXagf5yXjHo=/fit-in/1440x1440/uploads/2016/6/15/nyphotochrom_19.jpg
“香蕉购物车”。

http://i.amz.mshcdn.com/CkN2_BcE6WRISnF7NCOE3zLT3xI=/fit-in/1440x1440/uploads/2016/6/15/nyphotochrom_25.jpg
“百老汇街。”

http://i.amz.mshcdn.com/rT3KalGaZ0BX7PkFQeuMxywI4bo=/fit-in/1440x1440/uploads/2016/6/15/nyphotochrom_17.jpg

“自由女神像”,原来的铜颜色仍然显示下一个绿色的光泽。