LOT 371

c.1940 Norton 350cc Model 40 International Registration no. GNA 804 Frame no. 92800 (overstamped) Engine no. 9800 (overstamped)

Sold for £8,050 inc. premium

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Lot 371

c.1940 Norton 350cc Model 40 International

The Autumn Stafford Sale - The Classic Motorcycle Mechanics Show|11 October 2026, 11:00 BST|Stafford, Staffordshire County Showground

c.1940 Norton 350cc Model 40 International
Registration no. GNA 804
Frame no. 92800 (overstamped)
Engine no. 9800 (overstamped)

One of the most charismatic model names in motorcycling history, 'International' was first used by Norton for its top-of-the-range sports roadster in 1932. The Inter's overhead-camshaft engine had been developed in the works racers for the preceding two years, and although (in the case of the '500') it retained the classic 79x100mm bore/stroke dimensions and shaft-and-bevels cam drive of the existing CS1, was entirely new. Based on the works bikes and intended for racing, the International could nevertheless be ordered with refinements such as lights and a kick-starter equipped gearbox. By the time production halted in 1939 it was being built with a four-speed foot-change 'box and plunger rear suspension (the 'Garden Gate' frame), reappearing after the war in similar guise save for the adoption of the hydraulically-damped Roadholder front fork, which replaced the pre-war girder.

The Inter would remain fundamentally unchanged until 1953 when it gained the race-developed Featherbed frame, an all-alloy engine and the 'laid down' gearbox. Expensive to make and challenged by cheaper parallel twins of comparable performance, the Inter ceased to be catalogued after 1955 but could still be obtained to special order until 1958, many of these later machines incorporating Manx components.

Nothing is known of the history of this Norton International prior to its purchase by Harry Balderston in 1974. Following its acquisition the Inter was kept on display at the W H Balderston's showroom for a number of years. Recommissioning will be required returning it to the road (the engine turns over). Accompanying paperwork includes an old-style logbook (issued 1953); an old V5; some expired MoTs; and the purchase receipt from 1974.
Key not required

Saleroom notices

Please note that no old MOT certificates or the 1974 purchase receipt are present with this motorcycle.

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