Need id on this canteen

[militarymania]

German m-31 style,no cup,marked "patent ritter" on back of clip,this is the only marking i could find,unadorned buttons with snaps,,grey plastic cap,,any idea when this was made or used?...thanks in advance,,,robert

[Adrian Stevenson]

Hi Robert, I have seen this one on the forum recently.

The hardware (clip) is legitimate Third Reich period.

My thoughts are it period but not military issue and will be either political or even a camping item.

Cheers, Ade.