Vintage Spirited by Randolph Duke Black Button Up Shirt - Size M

This is a Vintage Spirited by Randolph Duke Black Button Up Shirt. No size tag, it’s all worn off but I believe it’s around a size medium. Collared and buttons up in front. Has a sort of “bat wing” arm thing going on. Comes up on the sides at bottom of shirt. Measurements Pit to pit= 23 inches Total length = 19.5 inches