The info comes from the 1945-46 U.S. Naval Technical Mission to Japan, which gives exhaustive, complicated & confusing information about Japanese Navy ship colours. Given that the contemporary photos are in B & W, I'm not surprised that disputes over colours for models is not uncommon - I'm going my own interpretation way for painting..............Very interesting Dave. The Sasebo colour is markedly different from the other two isn’t it. I can imagine those two being different paintshop interpretations, but not the Sasebo.
Dave