These are the measured Munsell values from extant Nakajima built Zero artifacts in Japan kindly provided by Japanese researcher Katsushi Owaki.
For the early Zero a good impression of a possible batch variation from neutral grey through light grey to greenish grey is demonstrated. Whilst allowing for the effects of weathering, exposure and age discoloration the appearance of the colours is generally consistent with contemporaneous eyewitness reports and the descriptions contained within the Zero Maintenance Manual and the YoKu No.0266 report. These are the only officially documented references for the colour of the early Zero and are therefore highly significant:-
- Hai nezumi iro (ash or grey rat colour)
- J3 Hai iro (ash or grey colour) (but) slightly towards ame iro (amber or caramel colour)
Regarding the description "ame iro", the Sanseido Dictionary states:- "ame: wheat (millet) gluten; glutinous rice jelly. ame iro: light brown; amber; yellow."
Bear in mind that the YoKu report does not describe the current Zeros (in February 1942) as ame iro per se but as a grey tinted with amber.