Vtg 70s blue & white checked shirtwaist dress

Vintage 70s blue & white checked dress Excellent vintage condition except missing one button on a cuff and there’s a cut inside the flap that buttons in front as seen in pictures This dress was my mother’s and has been in attic since then She was tiny 😬 Armpit to armpit is 16” Waist is 26” Sleeves are 22” Length is 33” No brand or material tag