Color advertising postcard issued by TWA (Trans World Airlines) as part of their "Color-foto" promotional series — showing the Liberty Bell on display in Independence Hall, Philadelphia, flanked by two American flags. The right panel carries descriptive text about the bell and its historical significance, with the TWA logotype in red. Printed "Litho in U.S.A." with a June 1950 print date code.

• Caption: The Liberty Bell — Color-foto by TWA
• Publisher: TWA (Trans World Airlines), Litho in U.S.A., June 1950
• Status: Unposted