"Sometimes things that are not true are included in Wikipedia. While at first glance that may appear like a very great problem for Wikipedia, in reality is it not. In fact, it's a good thing." - Wikipedia.
From what I can see its the US 37mm M1916 with the rotating breechblock, the US version of the "canon d'infantre de 37mm mle1916"... from a pic of the complete mount from Hunnicut "Stuart Light Tank" haven't been able confirm from any other source yet though....
