Smithsonian Institution | Archives Center Warshaw Collection SI NMAH Archives Center - Warshaw Collection - Lithography - Vertical Box 2 - Leonhardt - Le Petit
Smithsonian Institution | NMAH Archives Center Warshaw Collection SI NMAH Archives Center - Warshaw Collection - Printers & Printing - Box 10 Folder 2 - Geo S. Harris, Library Company of Philadelphia | Print Department Helen Beitler Graphic Ephemera Collection - Calendars - George S. Harris [P.2011.10.164]