vintage 1960s chambray work shirt Big Mac JC Penney cotton, blue button up, mix of white concave/convex buttons white stitching double breast pockets w/button flaps-right pocket pen slit yoke tail good vintage condition, light wear-patched right upper sleeve bit of paint stain-see photos no size on shirt that I can see, most like XL, see below measures, lying flat, shoulder-18" chest-23 1/2 to 24"" sleeve-23" length from back neck line below collar-30" All sales final, no returns/exchanges…