50s HBT Field Shirt / Jacket, ~M 22 x 28, Vintage US Army Herringbone

Here is an ~early 50s US Army Herringbone Twill Utility Shirt / Jacket, fitting an approximate modern Medium (22" x 28", complete measurements below), in very good vintage condition with all original buttons, the feeling of wear and softness in fabric throughout but no major flaws, some light marking on the back and on the arm; please see pictures for details, and reach out with any questions.
Measures:
19" across the shoulders
22" across the chest, pit to pit
20.5" across hem
28" front length
28" center back length
23.5" sleeve length, from arm opening to cuff
30.5" full sleeve length, from collar to cuff
6.4" cuff