Neurological advertisements on stamps.
Haas
L F
LF
D000329:Advertising / Q000266:history*; D006261:Headache / Q000188:drug therapy / Q000266:history; D049672:History, 19th Century; D009422:Nervous System Diseases / Q000188:drug therapy / Q000266:history; D009462:Neurology / Q000266:history; D009520:New Zealand; D010678:Philately / Q000266:history*