19th Century dentistry advertising trade cards.
Croll
Theodore P
TP
Department of Pediatric Dentistry, University of Pennsylvania School of Dental Medicine, USA.
Swanson
Ben Z
BZ
D000329:Advertising / Q000266:history*; D003802:Dentifrices / Q000266:history*; D049672:History, 19th Century; D011327:Printing / Q000266:history
D003802:Dentifrices