Stamp printed in Belgium shows the Atomium and exposition emblem of the 1958 World's Fair in Brussels.
Stamp depicts Leo Hendrik Baekeland, a Belgian chemist who invented Bakelite (polyoxybenzylmethylenglycolanhydride) in 1907. Bakelite was an inexpensive, versatile, and popular plastic, which marked the beginning of the…
Friedrich August Kekule von Stradonitz was a German organic and theoretical chemist, whose most famous work was determining the structure of benzene. The FDC features Kekule on the cachet, a postmark depicting the…
- circa 1939
Depicts two Trappist monks from Orval Abbey, presumably brewing Trappist beer.