Mate it is the Macchi M.41bis.
Now that you mention it, I may have silhouetted some small openings between the wing and the engine; I should have seen some light of the day through there
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The difference between prototype M.41 and the bis is that the radiator is "oblique frontal"in the prototype and and "vertical" in the production version.
The difference of the M.71 (which was for catapulting) were
stronger wing cellule and catapult pick-up points and, to facilitate rapid assembly and disassambly during shipboard operations, it had inclined steel tube struts between the hull, interplane struts, and upper wing section instead of the M.41bis's bracing wires
Over to you Mate
