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ID #SA959484
FOR SALE
£795
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Steam Engine Demonstration Model for Projection by Max Kohl Germany
For sale by Jason Clarke Antiques
for sale €930     $1,010
£795
Jason Clarke Antiques

Jason Clarke Antiques

Sellingantiques Verified Since Jul 2015
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Id #SA959484
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Steam Engine Demonstration Model for Projection by Max Kohl Germany

1900 - 1920
Description

For sale, an early twentieth century steam engine educational demonstration model for projection by Max Kohl, Germany.

Appearing in Max Kohl’s voluminous catalogues of the period, this rare and unusual demonstration model is comprised of a marble base engraved to the maker, “Max Kohl AG Chemnitz” with a brass cut-away model of the inner workings of a steam engine secured to the base. A painted cast iron pillar to the side supports the operating handle and rod to which the pistons are attached.

This super quality example is ingeniously differentiated by the plates enclosing the mechanism and the inclusion of a small inlet pipe which has been incorporated to the side of the casing. Kohl’s 1914 catalogue in which it appears explains that the model was devised to allow for cigar smoke to be blown through the inlet and owing to the cutaway mechanism, a working demonstration could be backlit and projected onto a screen with the path of the smoke being viewed whilst in operation.

Max Kohl of Chemnitz Germany was founded in 1876 and produced a vast array of scientific instruments and demonstration apparatus for sale worldwide. Kohl died from complications associated with diabetes in 1908 but the company continued thereafter as Max Kohl AG. The factory in Cheminitz suffered heavily from bombing during the Second World War and the remaining equipment was dismantled and removed by the controlling Soviet powers. It was finally incorporated into the VEB Polytechnik.

Circa 1914

Physical Dimensions
Height
25cm (9.84")
Width
18cm (7.09")
Depth
7.5cm (2.95")
Declaration

Jason Clarke Antiques has dated this Steam Engine Demonstration Model to the 1910s.

Reference Numbers
Sellingantiques Reference
SA959484
Description
For sale, an early twentieth century steam engine educational demonstration model for projection by Max Kohl, Germany.

Appearing in Max Kohl’s voluminous catalogues of the period, this rare and unusual demonstration model is comprised of a marble base engraved to the maker, “Max Kohl AG Chemnitz” with a brass cut-away model of the inner workings of a steam engine secured to the base.

“
A painted cast iron pillar to the side supports the operating handle and rod to which the pistons are attached.
Jason Clarke Antiques
fig 1. A mechanical steam engine cross-section demonstration model made of polished brass and black cast iron on a dark rectangular base.
fig 1. Steam Engine Demonstration Model for Projection by Max Kohl Germany

This super quality example is ingeniously differentiated by the plates enclosing the mechanism and the inclusion of a small inlet pipe which has been incorporated to the side of the casing. Kohl’s 1914 catalogue in which it appears explains that the model was devised to allow for cigar smoke to be blown through the inlet and owing to the cutaway mechanism, a working demonstration could be backlit and projected onto a screen with the path of the smoke being viewed whilst in operation.

fig 2. A mechanical steam engine cross-section demonstration model made of polished brass and black cast iron on a dark rectangular base.
fig 2. Steam Engine Demonstration Model for Projection by Max Kohl Germany

Max Kohl of Chemnitz Germany was founded in 1876 and produced a vast array of scientific instruments and demonstration apparatus for sale worldwide. Kohl died from complications associated with diabetes in 1908 but the company continued thereafter as Max Kohl AG. The factory in Cheminitz suffered heavily from bombing during the Second World War and the remaining equipment was dismantled and removed by the controlling Soviet powers. It was finally incorporated into the VEB Polytechnik.

Circa 1914

Height
25cm (9.84")
Width
18cm (7.09")
Depth
7.5cm (2.95")
Date of Manufacture

Jason Clarke Antiques has dated this Steam Engine Demonstration Model to the 1910s.

Reference Numbers
Sellingantiques Ref
SA959484
Jason Clarke Antiques
Jason Clarke Antiques
Sellingantiques verified Since Jul 2015
Dealer Profile

You can view the stock and full dealer information on the Jason Clarke Antiques Profile Page

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A mechanical steam engine cross-section demonstration model made of polished brass and black cast iron on a dark rectangular base.
1 / 13
Archive I A mechanical steam engine cross-section demonstration model made of polished brass and black cast iron on a dark rectangular base.

Steam Engine Demonstration Model for Projection by Max Kohl Germany

Archive II A mechanical steam engine cross-section demonstration model made of polished brass and black cast iron on a dark rectangular base. View II
Archive III A mechanical steam engine cross-section demonstration model made of polished brass and black cast iron on a dark rectangular base. View III
Archive IV A mechanical steam engine cross-section demonstration model made of polished brass and black cast iron on a dark rectangular base. View IV
Archive V A mechanical steam engine cross-section demonstration model made of polished brass and black cast iron on a dark rectangular base. View V
Archive VI A mechanical steam engine cross-section demonstration model made of polished brass and black cast iron on a dark rectangular base. View VI
Archive VII A mechanical steam engine cross-section demonstration model made of polished brass and black cast iron on a dark rectangular base. View VII
Archive VIII A mechanical steam engine cross-section demonstration model made of polished brass and black cast iron on a dark rectangular base. View VIII
Archive IX A mechanical steam engine cross-section demonstration model made of polished brass and black cast iron on a dark rectangular base. View IX
Archive X A mechanical steam engine cross-section demonstration model made of polished brass and black cast iron on a dark rectangular base. View X
Archive XI A mechanical steam engine cross-section demonstration model made of polished brass and black cast iron on a dark rectangular base. View XI
Archive XII A mechanical steam engine cross-section demonstration model made of polished brass and black cast iron on a dark rectangular base. View XII
Archive XIII A mechanical steam engine cross-section demonstration model made of polished brass and black cast iron on a dark rectangular base. View XIII
Enlarged Archival View
Jason Clarke Antiques

Jason Clarke Antiques
Telephone 07815 046645
Location
Newbury
Berkshire
United Kingdom
Dealer Profile Page sellingantiques.co.uk/jclarke
Verified Since Jul 2015
Items For Sale 78
Items Sold 609
Jason Clarke Antiques
Jason Clarke Antiques
Verified Since Jul 2015
View Dealer Info
Location: Newbury, Berkshire, United Kingdom
Profile: sellingantiques.co.uk/jclarke
Verified
Jul 2015
For Sale
78
Sold
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A mechanical steam engine cross-section demonstration model made of polished brass and black cast iron on a dark rectangular base.
Steam Engine Demonstration Model for Projection by Max Kohl Germany
Ref: SA959484
A mechanical steam engine cross-section demonstration model made of polished brass and black cast iron on a dark rectangular base.
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Archival Detail

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Cataloguer’s note

Written by Sellingantiques from the dealer’s photographs and listing
  • ObjectScientific Models
  • Period1900 - 1920
  • StyleIndustrial Scientific Apparatus
  • MaterialBrass, Cast Iron, Glass
  • ColourBlack and Brass
  • MotifsSectional cross-section, Crank handle mechanism, Piston and valve linkage, Heavy cast pillar
  • SizeH 25 cm (10 in) x W 18 cm (7 in) x D 7.5 cm (3 in)

This early twentieth century scientific model by Max Kohl of Germany is a brass and cast iron educational steam engine demonstration apparatus in an industrial scientific apparatus style. The construction combines a dark rectangular base with a brass cut-away mechanism and a painted black cast-iron support pillar, featuring a turned crank handle with a black knob, clear side plates enclosing the internal piston and valve linkages, and slotted brass screws holding the casing together. Measuring 25 cm high, 18 cm wide, and 7.5 cm deep, the unit is designed for tabletop presentation. Positioned on an office desk or within a gentleman's library study setting, the model works as a tactile display object that showcases historical engineering mechanics. The visible components include a vertical inlet pipe on the side of the brass casing, polished brass surfaces contrasting against the black-finished metalwork, and an upright operating rod linked directly to the rotating overhead crankshaft.

FAQs

A scientific model serves as a focal mechanical display when positioned on an office desk, library bookshelf, or console table, providing visual contrast alongside modern or industrial furnishings.

Dust the apparatus regularly using a soft, dry microfibre cloth and avoid using abrasive chemical polishes on lacquered brass or painted iron components to prevent surface degradation.

Authentic pieces often feature maker stamps or engraved plaques from established instrument manufacturers, alongside precise hand-machined brass fittings, painted cast iron frames, and period-correct mechanical linkages.

These models are predominantly constructed from machined brass, cast iron, steel, and optical glass or clear acrylic plates, often mounted on heavy slate, marble, or metal bases for stability during operation.

These models were developed in the late nineteenth and early twentieth centuries as educational tools designed to project a functional cross-section of a steam engine mechanism onto a screen using a lantern projector.
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