Vintage button down fieldmaster brand shirt size 

L 16 - 161/2

 made in the USA

fabric tag is worn away fabric appears to be a soft cotton

shirt measures approx

armpit - armpit 24"

shoulder - shoulder 18"

sleeves from armpit 19.5"

length in back from bottom of collar 27"

all measurements were taken across front of shirt

please use measurements as a guide for sizing