Shefford Anderson brown Blazer jacket lined MCM union made vintage 1960s

Questions? Leave a comment below! used in vintage condition with normal signs of wear, including a couple very minor and small snags. (see last picture) inside left chest pocket has a few pen marks above the pocket (can only be seen inside) I couldn't find a tag with the material or size. the lining feels like a setting of some sort of silky/satin type material. Union made tag on the inside right chest pocket. made in the USA golden buttons have Royal looking embellishments, buttons have a W's on the underside measurements chest 36" (measures 18.5 from underarms underarm) length from shoulder to hem 29" sleeve 18" (underarm to cuff