Here is a super cool little v-neck white t-shirt by Pro Sport. Based on the size I'd say this is either a woman's or a kids shirt. 100% cotton and made in USA. Screen print on front that says Rochester Knee & Sports Therapy. Red, white, and blue accents at collar and end of sleeves. Very soft and comfy. In amazing shape with tons of life left. The tag says XL, but here are the measurements. (refer to the last pic above to see how I measure shirts)

Chest (armpit to armpit) 18"
Shoulder to end of sleeve (including cuff) 7"
Length 24"

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