Please forgive a poor newbie who is photographically-challenged...
Below shows a rather faint "F GROSSE" over "DRESDEN-N." over "1914":

Dresden...What a beutiful city! If you've only got 24 hours to spend in Europe, spend it in Dresden.

The yellowish tint is a result of my inability to operate a digital camera -- it is not actually on the holster.
"28A" is shown on the inside of the flap:
The pull-out strap is still in great shape. The only real problem that I see is the hole at the bottom of the holster. This holster was included with a numbers-matching "shooter-grade" 1916 DWM that I purchased eighteen years ago on a whim. I appreciate your help.
Thanks,
Rich