It is possible that the barrel bears some resemblance to a real cannon, French naval, however the references for those are very scarce. In my opinion the barrel is somewhat "comceptual" or generic and may not resemble any French naval barrel.
The carriage is quite far from any French naval carriage drawing I've seen, there are way too few steps for example It looks more like a carriage you'd see in a cartoon, you get the idea what it is supposed to be, but it isn't realistic.
