Rare 1756 no-name contract on ebay. It reminds me of a Perry Sportswear A2, with the Conmar zipper, collar stand, rust coloured lining, similar pocket shape. Collar is a little too pointed though.
http://cgi.ebay.co.uk/WW-II-USAAF-LEATH ... 0228222041
http://cgi.ebay.co.uk/WW-II-USAAF-LEATH ... 0228222041