Polish P-64 magazine question

[Woob]

Howdy and Doo to everyone of you. I have a question about a magazine I recently aquired from, of all places, the Goodwill Auction site. Here is a link to the completed auction. https://www.shopgoodwill.com/Item/127089505 For $21 I got a Bulgarian Makarov holster and a Polish P-64 magazine. I own 2 P-64's. A 1969 and a 1974. I have a Russian Mak but have yet to get a Bulgarian. Anyway, my question is about the magazine. I checked my other mags and they both have 2 sets of numbers etched over top of each other. I'm curious as to why this is. As for the new mag, it too has a double set of numbers but the highly visible one is ɅɅɅ25 instead of a five digit number. Does anyone know why this might be? Also the new mag has what looks like KT with a number 2 or 3 under it. Another mag looks to have the number 153 on it. Very interested to hear if any of this has any true significance or if it's just numbers. Surely they must have been put there for a reason. Thanks all for helping me chase the history some items in my collection. Almost as fun as shooting them.

[Longcolt44]

It seems to show each time these went through an arsenal check that didn't have the original one.