The PA Historic Museum has a site with a slide show of
old postcards from each county at:
http://www.state.pa.us/PA_Exec/Historical_Museum/postcards/postcards.htm
that is interesting.
--
Alice J. Gayley
Cooordinator, Clearfield County USGenWeb Project
http://www.pa-roots.com/clearfield/
Co-Coordinator, Armstrong County USGenWeb Project
http://www.pa-roots.com/armstrong/
Co-Coordinator, Jefferson County USGenWeb Project
http://www.pa-roots.com/jefferson/