I'm not sure just how vintage these cute little overalls are but the tags on front and back are not the ones being used now. I could not find information on dating by tags. But they have a tag sewn to the inside bib which shows size 18M 100% cotton Made in U.S.A. and washing instructions. They are in very good condition with no fading or rips. All the buttons are there and all have the Oshkosh by gosh on them. They are twenty two inches from top of bib to bottom of pant leg and have snaps across the crotch for easy changing. The straps are adjustable making the overalls somewhat longer. They are small and sweet.