I recently purchased a leather holster that was advertised on Ebay and it is intended for my CZ 24. It's in great shape and so far I can easily see the Czech rampant lion and the date 1925 stamped in blue ink. There are several other ink stamp markings but so far I have not been able to read them completely. This leads me to my question; is there a process or technique that brings up these stampings to greater clarity without damage to the marks or the leather. Have any of you tried viewing these stampings under a "black light"? Any suggestion would be appreciated.