Attaché case, leather, strap and handles, some wear

Dark brown, quality leather with three zippers- one interior side zipper does not close, inner, long and outside ones work well. Interior has two different linings- two outer ones are cloth while inside of case seems to be pig skin, minor age stains and wear in interior and at bottom edges. 16 x 11 inches. Brass attachments. Retractable handles and removable strap. No indication of make or place of production. Used in the 70s and 80s.