Rich, Waterbottle for Medical troops (Labeflasche mit Trinkbecher), looks to be an early version as the strap fittings were changed in 1915 (also the cup was changed from aluminium to metal at the same time), a super buy at $25 ! a great piece of kit ! I like it ! especially with its markings.
Prost ! Steve.
"The German Army is the perfectly adapted, perfectly running Machine. The difference is that the Germans are organised with a view to War...with the cold, hard, practical and business-like purpose of winning victories."
G.W. Steevens - The Daily Mail (1897)
Thanks!It is the first W.W.1 of this type I have. I have 4 of the W.W.2 type. The cup is steel I think. It has some rust inside. It also has the hook on the back. It is covered by the strap in the pic. Rich A. in Pa.