Simms high tension magneto, 1911.
3 3 c m
actual image size: 32cm x 25cm

Simms high tension magneto, 1911.

© Science Museum / Science & Society Picture Library


The high-tension magneto for igniting the explosive mixture of fuel and air in an internal combustion engine, was invented by G Honold of the Bosch company in 1903. It rapidly found favour as it combined the advantages of the magneto generator with those of the simple spark plug. This example, a Type S4 magneto with variable ignition, made by the Simms Magneto Co Ltd in 1911, is for a four cylinder petrol engine.

Image Ref.


buy a print

Select size
Select finish
How many prints?

buy a framed print

buy a canvas

buy a framed canvas