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Directly behind the attacker, at the top edge of the photo, a column of dust from its bomb-strike(s) hangs in the air, while undoubtedly strafing has just been completed - at the G4M Betty, parked in the grass below. Note the Boston's nose exhibits none of the glint characteristic of the standard greenhouse - no shine at all - and is undoubtedly a gunship conversion (see below).
At bottom-left and -right, pics annotated "4/3/44 New Guinea" and "4/44", respectively, both undoubtedly portray a single raid, 4/3/44 against Rabaul harbor - and/or Salamaua, in the same vicinity. At left, three merchantmen - already sunk, spewing oil, and/or burning - are documented as the latter explodes, following the mast-height attack by a 22 Squadron plane, taking the pic as it climbs away. At right, bomb bay still open from its mid-altitude release, a 22 Squadron Boston - this time clearly seen to have its nose converted to a gunship configuration - jinks, to avoid flak bursts.
So, those are pretty awesome, huh?!! It seems to me that (at least a few) pictures of 22 Squadron at the Battle of the Bismarck Sea - the central historical component of this build - must surely have been taken, as well. Any leads or other assistance in finding these would be greatly appreciated!