Could the small rag at the bottom of the holster also be intended to "catch" any excessive gun/barrel oil that might continue to drip out of the muzzle of the luger, once placed back inside the holster. This would serve to catch the oil and not let it soak into the bottom of the leather...just a WAG...
Regards,
Pete... <img border="0" alt="[typing]" title="" src="graemlins/yltype.gif" />