Stetson Airplane hat box.  1940’s 
To us it looks like a DC-7 which would have operated in the early 1950’s. It also looks like the1940’s operating DC4 where we see a reference photo of the rear section.  We may see circular window edges, which would place the plane in the 1940’s.
Condition very good with some tears, abrasions, dirt, dust, and overall foxing and aging as shown.  As with most vintage and antique items, this is simply part of surviving.