A labour book, measuring 105x147mm, extremely fine condition with minor scuffing. It was issued to Erich Wichmann, born in 1905 in Berlin. The document is dated to November 6, 1941. Wichmann worked as a “Revolverdreher” (lathe operator) for the Dr. Georg Seibt AG company between 1941 and 1944. He produced pieces to construct airplane radios. Up until 1940 the company had produced mainly general radios. Since then they had switched production solely to war equipment.