topic

• Bridges3
• Houses3
• Rivers3
• Historic buildings2
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name

• Carnegie Library of Pittsburgh1

collection

• Detroit Publishing Company postcards19

place

• Philadelphia12
• Pittsburgh6
• Fairmount Park (Philadelphia, Pa.)5
• Philadelphia (Pa.)5
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genre

publisher

• Detroit Publishing Company15

division

• Wallach Division: Photography Collection19

type

• still image19