Vintage 1950s-60s Hathaway "Lochlanna" wool cotton blend plaid flannel shirt. Swiss made fabric. Made in the USA. 

Tagged medium.

Measures:
~22" chest from armpit to armpit
~16.5" rear shoulder seam to seam
~28" length from base of collar to hem
~32" sleeve from rear mid collar to cuff end

Vintage, pre-owned. Signs of normal light wear and use. Two small marks/stains on upper left arm, see images for details. Overall good vintage condition.