Sorry Romanator, but even to the naked eye the relative head sizes in the two pictures are vastly different. Your crude attempt at measurement comparison is totally flawed.
Without attempting to use measuring sticks, compare the lower panel of the sliding canopy in each picture with the head in that picture, (the angular error and FOV mismatches are then as good as eliminated), and it is obvious that the pilot's head in the lower picture is almost half the size of that in the upper.
In the BoB era most US fighter aircraft were bult with very large cockpits, the same was not the case with European and British fighters.
Perhaps you should sue your optician, lol.
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Puffer_2
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