Hmm, are you sure? --a variant was the A5M (or A5M4), which seems a lot like the sake cup drawing. It has a 3-bladed prop, and in outline it seems really close.
Also, I would give some 'artistic license' to the artist who painted the sake cup, They were not trying for an exact reproduction, but instead looking for it to convey feeling. (adding the wires from mid-wing to fuselage besides also getting the prop wrong)