The Douglas Globemaster, C-124, was a VERY large transport plane of the 1950s and 1960s. A few tin toys were made, the best being the Yonezawa examples from the early 1960s.
Here is a small Yonezawa with ten inch wingspan, radome, wing tanks, opening hatch and even an upper skylight, a dubious fantasy feature. The colors are realistic with "CONTINENTAL DIVISION" in small letters on the tail fin.
This large Bandai toy plane is colorful and named the Bully Beef Express. It has the same wings as a DC-7 with a span of 17."
The strangest toy Globemaster that I have is a Mitsuhashi brand in Northwest colors. Northwest never flew airline services with a Globemaster. This is not only a strange toy, but a rare one. This example has worn finish on the crown but it's the only one I have ever seen for sale. The wing tanks are metal. Those on the Yonezawa and Bandai planes are plastic.
I remember that Barry has a nice example, I hope he will show us a photo!