Free Library of Philadelphia
 
Photographic Media The following are descriptions of some of the photographic formats of the original images from the Print and Picture Collection that have been digitized for this project.
Select a media type:
Sources and Further Reading

Baldwin, Gordon. Looking at Photographs: a Guide to Technical Terms. Malibu, CA: The J. Paul Getty Museum, 1991.

Mace, O. Henry. Collector's Guide to Early Photographs. Radnor, PA: Wallace-Homestead Book Company, 1990.