Vintage Handmade Navy and White checker/dice Patterned Shirt

Stylish vintage button down shirt with a navy and white geometric pattern. Button-up front with a classic collar.. No size tag, no material tag. Best guess is it could fit a modern medium. Please see measurements. Approximate flat measurements 23 inches pit to pit 28 inches in length 26 inches sleeve length 6 inches width of the sleeves at the wrist 19 inches shoulder seam to shoulder seam.