Here is a rare Eastman, an HLB Corp 37-3891P contract in good condition size 46.

Eastman Leather - USAAC A2 Flying Jacket (size 46L) by HLB corp. | eBay
A-2 Jackets Eastman no longer list this style, which is an exact reproduction of a very small batch produced by HLB themselves during WW2. • Sleeve cut – unique to HLB. • Inset collar hook - unique to HLB.
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