help with acceptance stamp

[klaus 3338]

Tom, I also never have seen before a stamp like this one on a holster.
There was some grease on the stamp. I took some new closeup photos of the stamp and some of the commercial holster.
The holster was not so expensive and I´m not sure if other people mentioned the stamp before. A bought it as a commercial and holsters like this are hard to find in Germany. I think it was the forth I saw here in Germany during the last 25 years.
Best regards Klaus