Vintage Girls OSHKOSH B’GOSH Blue Vestbak denim Overall Jumper Dress Sz 3T? USA

I believe this dress to be from the 1970’s. Front tag has B’Gosh in Orange text with OshkoshBgosh under it in blue and white. The back has a triangle with red and green text reading OSHKOSH B’GOSH vestbak Union Made. Green and gold shamrock buttons. Front pocket. No size tag. Seems to be a 3T. Length is 21.25” from top of shoulder to botto, of seam. Strap can slightly be adjusted. Waist measures 10” laid flat. EUC