Jean-Joseph Étienne Lenoir (12 January 1822 – 4 August 1900) was a Belgian engineer who developed the internal combustion engine in 1858. Prior designs for such engines were patented as early as 1807, but none were commercially successful. Lenoir’s engine was commercialized in sufficient quantities to be considered a success, a first for the internal combustion engine.
The extra thick coin measures 70 by 45 MM in size .
The front and back are a 3D cast zinc alloy with all 3 sides polished and with antique bronze plating.
The coin comes in a black velvet pouch!
The antique bronze plating is an extra extra limited edition – 20.
The tracking codes have the BE prefix.
This item has a unique icon, and is trackable at geocaching.com.