DENVER, Penn. — The third and final installment of the Bobby Knudsen, Jr., collection rocked Morphy Auctions with a $5.1 million single-day take, driving the overall collection total to nearly $10 million. Complete auction results for the three-day event are available for review at LiveAuctioneers (Day 1, Day 2, Day 3).

“I can’t believe all three Knudsen sales are now part of history. What a year!” said John Mihovetz, Morphy’s Automobilia & Petroliana department head. “It was such a pleasure to handle Bobby’s collection and guide it every step of the way to its exciting conclusion. The Knudsen sales kicked open the doors to the next level of collecting by showing the power that can be generated when high condition meets extreme rarity.”

All Knudsen items in this sale were graded, certified and stickered by AGS, the grading service specializing in antique advertising.

As had been the case in the earlier Knudsen sales, consistently high prices were paid for the pieces regarded as “unicorns.” A Bruinoil and Bruin Gasoline double-sided tin flange sign with sides AGS-graded 94 and 91, respectively, on a scale of 1-100 barreled its way to $92,250 with buyer’s premium.

A 1930s Beacon Ethyl Gasoline single-sided, lighthouse-shaped porcelain sign, 4ft in height, was AGS-graded at 89 and sold mid-estimate at $72,000 with buyer’s premium.

A Harbor Petroleum Products single-sided porcelain sign featuring the image of a seaplane was AGS-graded 94, landing easily within its estimate range at $60,000 with buyer’s premium.

Morphy Auctions President Dan Morphy said that handling the Knudsen collection was “definitely one of the great highlights” of Morphy’s 20-year history. “The interest in Bobby’s collection never wavered, and that was reflected in the aggressive bidding and dozens of world auction records that were set during the series. Automobilia and petroliana is a highly visual and relatable collecting specialty that can be enjoyed by all age groups. The future looks very bright for gas and oil collectibles.”