WORLD'S SMALLEST Rider Ericsson Stirling Engine 

Retrol R01 1/12 scale Rider Ericsson pumping engine
Full Unboxing, Build and Review of the all new Retrol R01 1/12 scale Rider Ericsson water pumping engine from ‪@Stirlingkit‬ .
The latest highly anticipated model hot air / Stirling engine from ‪@Stirlingkit‬ The Retrol R01.
Available from their website here
Retrol R01 1/12 scale Rider Ericsson pumping engine：
www.stirlingkit.com/products/...
Other engines in our collection
www.rustyrelicsonline.co.uk/m...
The prescision oiler pen: amzn.to/3vB1h9n
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