Canteen Find...?

[MikeS0000]

Well, I believe it is a German WW2 (or associated canteen). Will post pics in a bit, but here are a couple details. Wool covered aluminum with leather strap lengthwise around the canteen. None of the leather sewn to the wool. Top of stopper marked "M6/1/40" and the front of the neck has the standard "RZM in a double circle mark over M6/1 over 39 ." But I had to carefully pull back the wool to see below the RZM circle as it is tight to the neck.

The buttons on the wool have the four pointed star pattern that I am used to seeing on WW1 Trench Knife sheath straps. buttons are made by "PRYM." The hanger is marked "HD over 39."

Pics tomorrow, but any thoughts?

Thanks!
- Mike