1 liter Gebirgsjäger(!) Labeflasche

A scarcely encountered Gebirgsjäger specific 1 liter capacity canteen or Labeflasche. These canteens where fitted with a carabiner hook on the back so that it could be worn on the carrying sling but also on the breadbag.  These 1 liter Gebirgsjäger Labeflaschen with both the harness and the hook are very hard to find!