View of Mercury, NASA

They have a lot of great postcards at the Johnson Space Center in Houston. This one is a view of Mercury. The picture was taken in 1974 by the remotely controlled spacecraft Mariner 10.

National Museum of Afghanistan

I picked up this postcard at the Houston Museum of Fine Arts, few months after seeing an awesome exhibition, Afghanistan, Hidden Treasures from the National Museum, Kabul. These ivory statuettes date from the 1st or 2nd century A.D. They were discovered in the 1930's in a palace or treasure store-house at Begram, 60 miles north of Kabul.

The Gutenberg Bible

The Gutenberg Bible was printed by Johann Gutenberg in Mainz, Germany, from 1452 to 1455. It is regarded as the first 'mass produced book' in the western world. This postcard depicts a copy held by The Beinecke Rare Book and Manuscript Library at Yale University.

Natterjack Toad

This cute Natterjack Toad postcard was a birthday gift, together with other great postcards. It was printed and sold to support the National Portrait Gallery, London.