Unit marked M31 canteen marked FWBN37 named Sauter

A very nice M31 canteen marked FWBN37 and FWBN38 indicating production in January 1938 by F.W. Brockelmann Aluminiumwerk GmbH KG,Neheim/Ruhr. The canteen cup is nicely named Sauter. The canteen strap is unit marked Bekl. L. im L. K. 2