WWI German m1916 Enameled Canteen Cup ''Silesia 16'' . Enameled cup as issued to every soldier during the war , In WWI the German canteens did not have standards issue cups and in 1916 they produced these cups to help with a shortage of aluminium . The cup is a green colour in used condition , some Enameled damages . Nicley marked Silesia 16 - made in Eisenhütte Silesia, Paruschowitz Oberschlesien . Nice piece and something that we do not see commonly .