Status : private collection. Engine cut for didactic display - stored at owner's home.
The concept of the rotary engine (the whole engine running around a fix crankshaft) is a french innovation.
Although rotaries where made in UK, Italia and Germany, the french ones where seen as the best ones; to the extent that french engines (removed from crashed planes) where fitted to German aircrafts.
The last Fokker Dr. I of Manfred von Richtofen had a french engine! And Clerget engines where (and still are) the most sought after french engine of WWI
Aircraft powered with a Clerget 9B :
Clerget 9B on Sopwith Camel (canadianflight.org)