Big City Skylines 2008 (sheet of 6 x 4 images)
   New York City
   St. Louis
   Chicago
   San Francisco
sharp corners

value: cents / $
different imprints: FIRST-CLASS / PRIORITY / EXPRESS

Big City Skylines 2008 (sheet of 6 x 4 images)
   New York City
   St. Louis
   Chicago
   San Francisco
round corners (with text at the left side)

value: cents / $
different imprints: FIRST-CLASS / PRIORITY / EXPRESS

Big City Skylines 2008 (sheet of 6 x 4 images)
   New York City
   St. Louis
   Chicago
   San Francisco
round corners (without text/year at the left side)

value: cents / $
different imprints: FIRST-CLASS / PRIORITY / EXPRESS