Here is a great looking short sleeve button down shirt by Carwood. Handsome plaid in yellow, red, and blues. Crisp white buttons and epaulettes on the shoulders. Buttoned pocket on each breast. Super sharp with a ton of life left! The tag says M, but here are the measurements. (refer to the last pic above to see how I measure shirts)

Chest (armpit to armpit) 22"
Shoulder to end of sleeve (including cuff) 9 1/2"
Length 34"

This item is sold from a vintage boutique in Roanoke, VA.