Collection of [9] postcards published by the French resistance organization C.O.S.O.R with titles and descriptions in French of the Natzweiler-Struthof concentration camp. Includes photographs of the camp, inmates marching, the crematorium and barrels for the ashes of the martyrs, and more. The photographs were most likely taken by an American soldier in 1944 when the camp was discovered. Total of [9] postcards. Size: 9×14 cm. Very fine condition.