Vintage 7/16 Snap-on Drinking Glasses SFS141 USA

Up for auction - Four Vintage Snap-on drinking glasses. The Glasses measure 6" tall by 3"wide. The bottom of the glasses have snap-on - 7/16 - SFS141 - USA - PAT. NO. 3273430.

My husband bought these in the early 1980's. He has never used them.

Feel free to ask any questions. Good Luck and Happy Bidding