Martin,
It's a Graupner "2-Zylinder- Dampfmaschine" Order No 1940.
Glynn Guest
Thanks Glynn! https://www.hobbydirekt.de/Alte-Kategorien/sonstiges/2-Zylinder-Dampfmaschine-IST-L-Graupner-1940::31556.html?language=en2-Zylinder-Dampfmaschine IST- Graupner 1941 The IST-L and IST-S steam engines are suitable for model boats up to about 100 cm in length. Each set contains the 2-cylinder steam engine for forward and reverse running, a hard-soldered, timber-clad brass boiler with burner, water level indicator and manometer, gas tank and associated tubing. The IST-L steam engine is suitable for the OTTO LAUFFER steam launch, Order No. 2102, while the IST-S steam engine can be installed in the SATURN harbour tug, Order No. 2051; the latter at the builders discretion.
2-cylinder steam engine, Order No. 1940.1
Horizontal boiler, Order No. 1940.2
Vertical boiler, Order No. 1941.2
Burner, Order No. 1940.3
80 ml gas tank, Order No. 1940.4
vertical
Diameter 80 mm
Length approx. -
Height approx. 110 mm
Burn duration approx. 15 min
Weight approx. 480 g