If you don't get your answer here, you might want to try Axis History Forum in the Japanese at war sub section. There are several members there who focus on Japanese OOB, unit strength, statistics, etc.
looks like an original tunic that eBay criminal seller cupman added insignias. Original issued aviation tunics are extremely rare. Top wing is for flight crewman & lower is aviation/pilot wings. Both are found in unissued, surplus condition all over the internet
Comment