One of just 75 known surviving Marmon Sixteens, the especially handsome convertible sedan offered here has had its ownership history traced by historian Dyke W.

Ridgley back to the late 1950s, when it was in the ownership of someone recorded only as Ballard.

In 1962 it was sold by Mr.

Ballard to longtime Classic Car Club of America member, Robert “Bob” Mellin of Richmond, Michigan, who passed it to another collector in that state in 1974.

Soon thereafter it was purchased by the prolific Oklahoma-based collector, restorer, and auctioneer, James Leake, who retained it in his private collection for several years.

In 1987 the Marmon was purchased from the Leake stable by Sam Vaughan, an oil and natural gas magnate in the small town of Uncertain, Texas, who was at the time building a large collection of vintage automobiles, held by his business as an investment.

Following his untimely passing in 1989, the car was sold at a landmark auction of the Vaughan collection to an enthusiast in...