Didn't the Japanese take any decent photos in WWII?

Probably not exactly what you were asking for

No, I don’t know Japanese, and I’m certainly not messing around with my PC to search in Hirigana and Katakana… Appreciate the thought, though!

My primary interest is British/Commonwealth and Russian arms, although I’d like to think I know a fair bit about most WWII firearms!

Excellent point. The Japanese of that era did not think chopping off heads et. al. was in any way wrong. Like I said, a very different, pre-modern sort of army.