Postcards : Hospitals
Postcards : Schools
Postcards : Public Buildings
Postcards : Libraries
Postcards : Post Offices
Postcards : Bridges
Postcards : Parks
Postcards : Historic Buildings & Monuments
Postcards : City Views
Postcards : Roadside America
(Roadside America includes the small motels, courts, and restaurants that travelers used. A large and wonderful category for Americans)
Thank you,
Chris
http://us.ebid.net/stores/Collectible-Postcards