Used with
permission of Maiken Naylor, University at Buffalo, Buffalo, NY, USA,
http://ublib.buffalo.edu/libraries/units/sel/exhibits/stamps
The Royal Microscopical Society of Great Britain celebrated its 150th anniversary in 1989 with a set of stamps picturing objects magnified from 5 to 600 times: shown here are a blue fly, snow flake, blood cells, and a microchip.