Check this out. It is hard to tell from the one photo if it is really from the 1930s, but is possibly an early Aviation Leathercraft jacket from the 1970s. I asked the seller for close-up photos and details of the zips, but he gave a general reply which added nothing to the description.
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http://cgi.ebay.co.uk/IRVIN-FLYING-JACK ... 0213455624
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http://cgi.ebay.co.uk/IRVIN-FLYING-JACK ... 0213455624