Figuring out age of glock 19 gen 3

[defjon]

Hello,

I remember a resource a few years ago dating serial numbers and proof marks to figure out an approximate born on date for glocks.

I've picked up a gen 3 glock 19. It has a 3 digit alpha/3 digit numerical serial as well as a proof mark on the barrel that appears to be a pentagon and a number 1.

Any guidance on the 3 letters/ 3 numbers and corresponding years or months would be appreciated!

Thanks

 

[jsbethel]

Glock Serial Number Research Project | Glock Talk