Business card of a lieutenant from Poznan. Stanislaw Mrozek lieutenant with seniority from May 1, 1924, served in the 54th Infantry Regiment of Borderland Riflemen, then served in the 3rd Airborne Regiment on Ławica, and the 57th Infantry Regiment, in 1933 promoted to the rank of captain, served in the Border Protection Corps, in the "Skałat" battalion. During the defensive war he was taken ...