DAG commemorated its 10th anniversary with an exhibit celebrating that most humble of souvenirs, the picture postcard. DAG acquired postcards from private collectors, libraries and commercial sources to compile an array of images that exemplify good design from the city's founding though 2002. A related contest named the most "postcard-worthy" Philadelphia sites from the decade past.
http://www.designadvocacy.org/advocacy/greetings-philadelphia-great-architecture-postcards
