1970s Dress, Size M, Navy Pinstripe Midi Dress with Neck Tie

Navy blue 1970s collared midi length dress shirt with red and white vertical stripes, one chest pocket, subtly puffed short sleeves, neck tie, red buttons, belt tie. 100 percent polyester. Made in Canada. Tag size 10, but fits like a modern US size 6. Measurements lying flat: 18” armpit to armpit 16.5” waist (elasticized, will stretch to 17”) 39” shoulder to hem Questions welcome!