Pre war M31 canteen marked CFL 39/FWBN 38

Mismatched pre war M31 canteen in good, used condition. The cup is marked FWBN 38 (F.W. Brockelmann Aluminiumwerk GmbH KG, Neheim/Ruhr) and the flask CFL 39 (Carl Feldhaus Aluminium-und Metallwerke, Lüdenscheid). Sadly matching but early canteen in overall good condition.