French industrialist (1878–1935) best remembered for the make of car bearing his name. AQS in French, signed “Andre Citroen,” April 3, 1926, on an off-white 5.5 x 8 sheet.Citroen writes, in full (translated): “It is by specialization and standardization that production is increased. It is by intensifying production and consequently increasing exports that one will get a country back on its feet.” Mounting remnant along left edge and mild toning, otherwise fine condition. RRAuction COA.