Here is a super cool button down long sleeve shirt by Alleson of Rochester. 50/50 cotton and poly blend. Handsome plaid of blues, grays, and maroon. Seven button front, a pocket on each breast, and a button on each cuff. Thin, sheer, lightweight, soft, and crazy comfy. Very sharp looking shirt in amazing condition with lots of life left! The tag says 2X (17 1/2 - 18), but here are the measurements. (refer to the last pic above to see how I measure shirts)

Chest (armpit to armpit) 28"
Shoulder to end of sleeve (including cuff) 24"
Length 32"

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