WW1 grouping discovery.

[klaus 3338]

Thanks for sharing!
As most cavalry regiments saw the 1. Reserve Ulanen Regiment action on the Eastern Front until 1917 and then on the Western front.
The 1915 dated holster was not issued to the gun from the beginning. The holster was issued to a regiment of the 13. Army Corps.
The picture shows a unit stamp of the regiment on a 1912 dated altered Reichs- Revolver holster.