Tropical M31 canteen marked WWE 41

Excellent “tropical” M31 canteen with webbing straps. The aluminium flask itself and the cover are both nicely marked W.W.E. 41 which indicates production by W. Wagner GmbH, Esslingen in 1941. This is one of the rarer makers to encounter when you collect canteens! The cup is  MPD coded F7/K which indicates production by a still unknown maker and the usage of urea resin (which is a certain type of Bakelite) with an organic filler material. Stunning M31 canteen in very good condition by a rare maker!