60s U.S. Military XS Wool Utility Shirt Jacket retailer Vintage

You are looking at a vintage wool utility shirt, circa 1960s era. U.S. military issued.
Can be worn as a shirt or light jacket.

This item is in excellent condition. No holes or stains. No signs retailer of usage to mention.

Seems to fit a men's size XS as tagged.
See photos for greater detail. Please refer to measurements to ensure proper sizing.

Measurements (laying flat):
25.5” top of collar to bottom in front
18” pit to pit
19” pit to end of cuff
25.5” shoulder seam to end of cuff
17” shoulder to shoulder seam at very top