Mags have some wear and grunge that would likely clean up well with minimal effort. Would make excellent range mags. One is marked C-S on the toe of the floorplate, the others are unmarked. Finish looks to be original and range from obvious phosphate parkerizing all the way to what looks to be a very thin blued finish. They have the look and feel of military contract mags, but no markings that one would expect.
We acquired from the storage inventory of a gunshop that closed years ago.