Wehrmacht Mess Kit M31 (Kochgeschirr 31). The 'Kochgeschirr 31' was introduced on 23 March 1931. This is a nice original aluminum and steel construction mess kit. The mess kit is maker marked with 'RB.Nr. 0/0570/0011'. The mess kit lost most of its original fieldgrey paint. The mess kit is in uncleaned condition as found. Rare RB.Nr. marked example in good used condition!