Springfield Armory 1911A1 question

remy

Private
Minuteman
Apr 12, 2008
10
0
Recently came across an older SA 1911A1, which was covered in heavy grease (for storage I believe) and very hard to operate but I cleaned it up and it looks to be in excellent shape. It is in the original box with cleaning rod, large cleaning brush and single mag. Started wondering how old it is and was going to e-mail SA but noticed a small logo on the right side that says Springfield Armory 1974. Did SA stamp dates on the slides in the past...I have not seen one dated before and was wondering if that is the manufacture year?