Check here: 1940s WWII by Aeroplane Photo Supply #3379 Martin 139B B-12A - USAAC | eBay
I'm not really sure if this is a XB-14 (powered by P&Y YR-1830-9 Twin Wasp). Looks more like a B-12 from the 7th BG to me.
I'm not really sure if this is a XB-14 (powered by P&Y YR-1830-9 Twin Wasp). Looks more like a B-12 from the 7th BG to me.
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