Makes › Duesenberg › Model JN › Model JN Convertible Coupe by Rollston · Coachbuilt · 1935 Ultra Rare
Duesenberg
Model JN Convertible Coupe by Rollston
Last two-seat open Duesenbergs delivered to customers; four Rollston convertible coupes in the JN series, one (J-560) ordered by Clark Gable and restyled by Bohman & Schwartz
Still being researched: full specifications. Everything shown is checked against the cited sources. Know more? Send us a source.
Contents
01Overview
At a glance
- Built
- 4 Built
- Years
- 1935
- Engine
- Not yet verified
- Power
- 198 kW / 269 PSFactory: 265 hp · converted
- Top speed
- Not yet verified
- Body
- Rollston
- Designer
- J. Herbert Newport (J-560 restyled with W. Everett Miller of Bohman & Schwartz)
- In this archive
- Not yet verified
- Surviving
- Not yet verified
Sources and any conflicting figures are in the sections below.
Why it matters
The four Rollston convertible coupes of the JN series were the last two-seat open Duesenbergs delivered to customers. One, J-560, was ordered by Clark Gable and reworked to his own ideas by Bohman & Schwartz.
How rare is it?
Six separate kinds of rarity – never combined into one number.
Each kind of rarity is rated separately and never combined.
02Production & history
Production
Every figure says what it counts.
| What is counted | Figure | Basis | Status |
|---|---|---|---|
| Total model productionRollston-bodied JN convertible coupes | 41 | Factory production | Independently researched |
Independent counts (e.g. engine and colour) are never combined into a calculated figure. Surviving examples are never presented as original production.
History
J. Herbert Newport designed the JN bodies with skirted fenders around 17-inch wheels, a low raked windscreen and a disappearing top, and they sat low on the chassis without the battery and tool boxes of earlier Model Js. Clark Gable's car was shipped from Rollston in New York to Bohman & Schwartz in Pasadena, where he and designer W. Everett Miller added an extended hoodline, cowl vents, a more steeply raked windscreen, a body-colour radiator shell and rear fender skirts with twin rear spares. Gable used it with Carole Lombard, and it was sold after her death in 1942.
Variants
How each version differs from the standard Model JN Convertible Coupe by Rollston.
No variants documented yet. Have a source? Contribute it.
03Specifications
Technical specifications
Engine
| Engine family | Not yet verified |
|---|---|
| Engine code | Not yet verified |
| Layout | Not yet verified |
| Displacement | Not yet verified |
| Bore | Not yet verified |
| Stroke | Not yet verified |
| Compression ratio | Not yet verified |
| Fuel system | Not yet verified |
| Power | 198 kW / 269 PSFactory: 265 hp · converted2 Independently researchedSource states bhp. |
| Power at | 4,200 rpm2 Independently researched |
| Torque | 507 NmFactory: 374 lb-ft · converted2 Independently researched |
| Torque at | 2,000 rpm2 Independently researched |
Transmission & drivetrain
| Gearbox | Warner Hy-Flex 3-speed manual2 Independently researched |
|---|---|
| Gears | Not yet verified |
| Driven wheels | Not yet verified |
Chassis, body & dimensions
| Chassis | Model J chassis modified with changed running boards and fenders so wider, lower Rollston bodies sit down over the frame rails2 Independently researched |
|---|---|
| Front suspension | Not yet verified |
| Rear suspension | Not yet verified |
| Brakes | Not yet verified |
| Steering | Not yet verified |
| Body construction | Not yet verified |
| Wheelbase | Not yet verified |
| Length | Not yet verified |
| Width | Not yet verified |
| Height | Not yet verified |
| Front track | Not yet verified |
| Rear track | Not yet verified |
| Kerb weight | Not yet verified |
| Dry weight | Not yet verified |
Performance
| Maximum speed | Not yet verified |
|---|---|
| 0–100 km/h | Not yet verified |
| Fuel tank | Not yet verified |
“Not yet verified” means no source has been checked for that value yet. Nothing is estimated to fill a gap.
04Colours & options
Factory colours & interiors
Original paint and trim, with the number of cars in each where a source gives it.
Not yet documented. Have a source? Contribute it.
Factory options & codes
Codes are shown exactly as written by the manufacturer.
Not yet documented. Have a source? Contribute it.
05Individual cars
Chassis register
Every documented car, with its colours, history and where it is now. Open a row for the full record. Known chassis are not automatically authenticated originals.
Not yet documented. Have a source? Contribute it.
Competition history
Every race result of the individual cars, in date order. Click a chassis number to open its full record in the register.
Not yet documented. Have a source? Contribute it.
Auction & sale history
Documented public sales of the individual cars. Click a chassis number to open its full record in the register.
Not yet documented. Have a source? Contribute it.
See one in person
Museums where an example of this car can be seen.
No example is documented on public display yet. Have a source? Contribute it.
06Reference
Identification guide
How to tell an original from a replica or later conversion.
JN convertible coupes ride low on the chassis without the external battery and tool boxes of earlier Model Js, with skirted fenders over 17-inch wheels and a disappearing top. The Gable car (J-560) additionally has the Bohman & Schwartz changes: hood extended over the cowl, cowl ventilators, body-coloured radiator shell and dual rear-mounted spares.
Sources
Each number links to the exact facts it supports.
-
1
RM Sotheby's Monterey 2026 – 1935 Duesenberg Model JN Convertible Coupe by Rollston and Bohman & Schwartz Level B
- 4 Rollston-bodied JN convertible coupes
-
2
1933-1935 Duesenberg Model JN Level B Supercars.net
- 197.6 kw / 265.0 bhp @ 4200 rpm
- 265.0 bhp @ 4200 rpm
- 507.08 nm / 374 ft lbs @ 2000 rpm
- 374 ft lbs @ 2000 rpm
- Warner Hy-Flew 3-Speed Manual
- accept a body that would drop down over the frame rails
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