Czechoslovakia postage stamp: roofs and folk art
c. 1971, part of set featuring Czechoslovakian folk architecture
designed by Jaroslav Lukavsky, engraving by J. Mráček
Netherlands Postage Stamp: J. J. P. Oud
depicts the Congresgebouw building designed by architect J. J. P. Oud
c. 1969
more stamps from series and info via d:r
United States Postage Stamp: World’s Fair
c. 1939/40
depicting the Trylon and Perisphere from 1939 The New York World’s Fair