Seal Cove Auto Museum, Antique Autos and Motorcycles from the Brass Era, Mount Desert Island, Maine
1921 Mercer
  • Manufacturer: The Mercer Automobile Co., Trenton, New Jersey; 1910-1926
  • Model: Series 5 Mercer Sporting Model
  • Body Style: 5 passenger touring car.
  • Cost new: $4,950, F.O.B. at Factory.
  • Engine: A four-cylinder, four-cycle, L-Head block type motor displacing 298.2 cubic inches S.A.E. rated at 22 horse-power but block tested at over 70 horsepower.
  • Transmission: Four speeds forward, one reverse via shaft drive.
  • Wheelbase: 132”
  • Equipment: One-man top, extra wire wheel, motometer, speedometer, Waltham clock, electric horn, complete tool equipment, and shock absorbers.

Mercer was known for building some of the best sports cars. The Mercer Raceabout (1911-1915) was one of the premier racing cars of the era. It was highly coveted for its quality construction and exceptional handling. The car’s original design was conceived by Mercer’s general manager – and society playboy – Washington A. Roebligh II. Roebligh perished in the 1912 Titanic disaster.

The engineer of the early Mercers was Finley Robertston Porter. He left the company in 1914 to build his own car, the F.R.P. You can find the only remaining F.R.P. in the world on display at this museum.

There is an article about the Museum’s Mercer Sporting when Mr. Roger Cutting owned it, on page 33 of his 1969 book titled MOTOR MANIA published by The Rand Press.