50s/60s Boys Sears Roebuck Coveralls (YM)

Sears Roebuck and Co USA Boyswear Sanforized Coveralls. Labeled "Size 12", seams to fit like a modern boys 8/10. The zipper does not work, needs replacement. Signs of wear, as expected, and adds to the overall amazing worn-in charm! Measurements below are taken laid flat:
Armpit to armpit 16.5"
Shoulders 16"
Waist 14.5"
Hips 16"
Crotch to Shoulders 25"
Inseam 24"
Total length 47"