HELP Needed ID stamps in WWI holster
 

I have got a holster, and I belive that it is a wwI holster.

On the back it is marked:

Crown I

and then properly a regiment mark:

8.56

On the front it is marked:

8./J.R.1.56

and on the front by the pull strap it is marked:

721.

Inside the marking for the producer and year is to faint to read.

Notice the later special arrangement for a cleaning rod.

Please advice me concerning the stamps.

The Crown over I indicates it was procured by the Bavarian 1st Army Corps in 1918. The unit marking on front is a Weimar Reichswehr marking indicating 8th company, Infantry Regiment 1, weapon 56. The abbreviated marking on the rear is 8th company, weapon 56.