M31 Canteen and Cup (Feldflasche 31 und Trinkbecher). The standard issue M31 canteen was introduced on 23 March 1931. This is a pressed wood, so-called "coconut", covered aluminium flask. The canteen is complete with aluminum cup and webbing straps. The canteen and webbing straps are all in overall good used condition with normal age and usage toning. The cup is made from aluminum and is in good used condition, the cup is nicely maker marked and dated with 'HRE42'. The canteen is maker marked and dated with 'H.R.E.43' indicating production by the company of 'Heinrich Ritter' from Esslingen in 1943. Nice original canteen in very good condition!