5-6 October 2017

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Lot 134

1906 Knox Model F-4 Tourist

  • Chassis no. 248
  • Serial no. 2097

Sold for $40,700

  • Formerly of the famed John Moir “A-to-Z” Collection
  • Pioneering air-cooled automobile with distinctive “porcupine” engine design
  • Very authentic appearance throughout

Harry Knox was a neighbor of automotive pioneer J. Frank Duryea in Springfield, Massachusetts. A graduate of the Springfield Technical Institute, Knox went to work for the Overman Wheel Company in nearby Chicopee Falls, where he built three experimental cars. Then, with the encouragement of Duryea, he returned to Springfield to form the Knox Automobile Company.

Knox’s first vehicle design was a three-wheel runabout, of which 53 were built in 1900. Four-wheel cars followed in 1902, all with Knox’s hallmark “porcupine” engine, an air-cooled design that used spike-like pins on the cylinders instead of cooling fins. It was billed as “The Car that Never Drinks.” The engine was located low in the chassis, with a transverse crankshaft and cylinders extending fore and aft. Early models had a sloping front dashboard, but by 1905 this gave way to a dummy hood that was becoming fashionable in the industry regardless of whether there was an engine beneath it.

Harry Knox left the company in 1904 to build the Atlas car across town, but the Knox company expanded to build five models, with one to four cylinders, by 1906. That year a Knox completed the prestigious Glidden Tour without losing a single point.

Fully restored, this 1906 Knox F-4 is ideally suited for one- and two-cylinder tours. The drivetrain has been rebuilt, with electric starting added for convenience, although the side-mounted crank remains operational. It retains chain drive and has a side-mounted carbide generator for the gas lighting. It has the correct style wheels and tires. The period-correct brass presents nicely. The green body exhibits a good shine, and the black patent leather fenders are intact.

Previously owned by the great collectors John Moir and Manny Souza, this is a fine example of the “Procupine Knox.”

Please contact our exclusive automotive transportation partner, Reliable Carriers, for a shipping quote or any other information on the transport of this vehicle.

Alexander Weaver


+1 864 313 6844
California, United States

Alexander Weaver joined RM Sotheby’s in 2011 as a Car Specialist after graduating from Furman University in South Carolina. Born... read more

Augustin Sabatié-Garat


+44 (0) 74 1511 4179
United Kingdom

Augustin Sabatié-Garat joined RM Europe in 2012 as a Car Specialist after more than a decade in the collector car hobby. Gradua... read more

Barney Ruprecht


+1 203 912 7168
Ontario, Canada

Barney’s interest in classic cars began at an early age after being introduced to his father’s all-original 1965 Porsche 911. Barney l... read more

David Swig


+1 415 302 2247
California, United States

David Swig joined RM Sotheby’s West Coast division as a Car Specialist in May 2015. David is a life-long automobile enthusi... read more

Don Rose


+1 617 513 0388
United States

Don joined RM in 2006 after several years of professionally trading sports and classic cars, and after earning a reputation as a noted... read more

Donnie Gould


+1 954 566 2209
Florida, United States

Donnie Gould joined the RM team in 2002 as a partner and Car Specialist after more than two decades in the vintage automobile auction ... read more

Gord Duff


+1 519 352 4575
Ontario, Canada

Gord Duff began his journey with RM Sotheby’s in 1998. Since then, he has gained an intimate knowledge of a variety of marques a... read more

Jake Auerbach


+1 310 559 4575
California, United States

Jake Auerbach got his start in the automotive industry at an early age, spending his summers during high school working at a classic c... read more

Kurt Forry


+1 717 623 1638
California, United States

Having worked for Bonhams’ Automobilia department for over 10 years, Kurt Forry joined RM Sotheby’s with more than a decad... read more

Matt Malamut


+1 805 231 6410
California, United States

A long-time car enthusiast and Southern California native, Matt studied Automotive Technology at San Diego Miramar College and complet... read more

Michael Squire


+44 (0) 20 7851 7070
United Kingdom

Michael Squire joined RM Sotheby’s European Division in the summer of 2016. He comes to RM with a prestigious racing background ... read more

Mike Fairbairn


+1 519 352 4575
Ontario, Canada

As one of the three founding partners of RM Sotheby’s, Mike has a long-standing interest in the classic car industry. Graduating... read more

Oliver Camelin


+44 (0) 75 0110 7447
United Kingdom

With an extensive background in exotic sports car history and sales, a particular passion for American curves, and fluency in three la... read more

Paul Darvill


+44 (0) 20 7851 7070
United Kingdom

Paul Darvill joined the RM Sotheby’s European team at the beginning of 2015. Paul holds a degree in French and Politics from the... read more

Pete Fisher


+1 519 784 9300
Ontario, Canada

Pete Fisher was first introduced to antique cars in high school, working for Classic Coachworks in his hometown of Blenheim, Ontario. ... read more

Shelby Myers


+1 310 559 4575
California, United States

Shelby Myers grew up with the classic car industry infused into every aspect of his life. He had the unique opportunity to watch the R... read more

Tonnie Van der Velden


+31 653 84 19 60
United Kingdom

Tonnie Van der Velden joined RM Sotheby’s European division in September 2015 as a Car Specialist. A lifelong enthusiast, Tonnie... read more