Nice info. I learned that my Glock 23 was made in 1990 or at least pre-Nov 1991. In '92 or '93 I took it to the Smyrna plant and had the trigger bar and other upgrades done. Not too long ago, I upgraded the recoil and firing pin springs with Wolf springs, and added tritium nite-sights. It has a hogue wrap-around grip, and less than 500 rounds through it.
No, I'm not selling it. I would if I could (and buy a 10mm), but it was my first gun. Sniff.
Thanks for the help JS and Phil. I just got it in trade and am glad to have a 19 back. It has no smiley on the barrel and no apparent wear. I will have to try and come up with some $ to test shoot it but the ole lady is happy so im glad.