Vintage New With Tag Striped Convertible Bag

New with tag vintage bag. This is truly a unique piece. I'm guessing this is bag that was designed in the 1970's/1980's by a company called Excel Marketing Services. Tags still attached and message from company inside. Heavy gauge linen with woven fabric down the middle. Top zipper closure opens to a roomy interior. Bag handle can be adjusted from shoulder to crossbody. No flaws or smells. Excellent, pristine condition.