Vintage 70s plaid, checkered wool blend blazer jacket

Vintage plaid or checkered blazer jacket USA Union made tag attached so probably from the 70s, ,maybe late 60s Beautiful color Lined Wool and polyester blend Fitted, two button closure, two pockets Market as size 11, but this is a vintage size which i think translated into a current medium. Please see the measurements also. Photographed on size 8 mannequin Made in the USA by Mg Concepts in Sportswear In very good condition.. There is some discoloration spots on the lining inside (see photo) but this is not visible when worn 2558