Duplex Marine Engine
An unusual and elegant 5-10 H.P. twin cylinder marine engine. Built c1910, no makers plate but in good overall condition.
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SIMPSON STRICKLAND Compound Steam Launch Engine
A very handsome light-weight marine engine from a steam launch.

US Navy Compound Marine Engine
A small marine engine probably designed for coastal craft and built for the US Navy.
5 3/4″ + 12″ x 8″ compound cylinders.
“Type M”
Engine No. 1546 – built 1918.
With brass lagging. Some loose components as shown.
Appears to be in nice original condition.

WILLANS 3 Cylinder Steam Launch Engine
~ A ‘modern’ design, built 1880’s ~
This is a very rare, if not unique enclosed type marine engine with reversing gear.
2″ x 4 1/2″ Cylinders ~ Approx 30″ High.
A very rare small enclosed marine steam engine.
Designed for a small steam launch.
In good original condition.
Possibly the earliest Willans in existence and a museum worthy engine.

SISSONS Quadruple Expansion Marine Engine
Cylinder dimensions:
6” + 8½” +12″ + 16½” x 12” stroke
The ultimate medium sized marine engine…

OUTRIDGES PATENT Rotary Steam Launch Engine
This is an extremely rare, vane type reversable steam engine of around 4 – 5 H.P. believed made to Outridges patent in the mid 1880’s.
Designed for small, high speed river launches, these rotaty engines were claimed to provide an excellent power to weight ratio and to achieve the then unheard of speed of 12 1/4 m.p.h!

Single Cylinder Steam Launch Engine
This single cylinder reversable marine engine has a handsome cast iron backstand frame and is fitted with Stephenson type link reversing gear. Piston valve and suitable for a steam launch of around 20 – 35 Ft Length.

HERRESHOFF? Triple Expansion Marine Engine
4 3/4″ x 7 1/2″ x 12″ + 6″ Cylinders.
High speed launch engine of about 40 H.P.
Believed made by Herreshoff of Rode Island, USA.
p.v. to H.P. Cyl, s.v. to M.P. & L.P. Cyls.
C/L crank to underside frame: 6″.
Length inc base: 38″, overall: 44″
Width inc base: 16″, overall 26″ x Height: 38″.
For sale incomplete and in need of major restoration.
This is a very unusual high power to weight engine designed for a high speed launch.







