This commemorative stamp was issued by Luxembourg in 1957 to promote the Foire Internationale de Luxembourg (Luxembourg International Fair). Designed by Lex Weyer and printed by Courvoisier S.A., it features a bold modernist design with a stylized yellow "L" carrying a wing, symbolizing progress, commerce, and international cooperation. The background shows a map of Europe, highlighting Luxembourg’s central location as a hub for trade and exhibitions. With its striking geometric imagery, this issue is a classic example of postwar European philatelic design.