OK, a quick one for the WIX brain trust.
My ever-loving-and-patient wife not only allowed me to get this 6-foot-long by 5-foot-wide picture of a round engine and three blade prop, but also let me hang it in the living room

Found it at SteinMart of all places. Was originally $300 but got it for only a third of that because of the frame being broken. A little nerd magic and voila!
I realize it's probably just a generic round engine, but I thought I'd ask if anyone could take a guess what it might be from. Maybe DC-3/C-47?
-Brandon