M31 canteen cup marked FWBN 42

TextbookM31 (Alum.)canteen excellent condition. These green painted aluminium cups are rather rare to encounter. The cup is nicely markedFWBN 42which indicates production byF.W. Brockelmann Aluminiumwerk GmbH KG, Neheim/Ruhrin1942. Perfect example to complete a M31 canteen!