The Bristol Britannia is a Model 314, and has an accurate shape.
The decals of course should be red rather than blue.
The propellers are not original, but are more realistic: the original props that came with this toy model were red.
Some specialize in just Dinky Toys but I have a few. This is my favorite.
http://i20.photobucket.com/albums/b228/PropMonster/ToyPlanes_DieCastMetal/DINKY%20TOYS/th_DinkyToys998Brit314001.jpg (http://i20.photobucket.com/albums/b228/PropMonster/ToyPlanes_DieCastMetal/DINKY%20TOYS/DinkyToys998Brit314001.jpg)
http://i20.photobucket.com/albums/b228/PropMonster/ToyPlanes_DieCastMetal/DINKY%20TOYS/th_DinkyToys998Brit314002.jpg (http://i20.photobucket.com/albums/b228/PropMonster/ToyPlanes_DieCastMetal/DINKY%20TOYS/DinkyToys998Brit314002.jpg)
http://i20.photobucket.com/albums/b228/PropMonster/ToyPlanes_DieCastMetal/DINKY%20TOYS/th_DinkyToys998Brit314003.jpg (http://i20.photobucket.com/albums/b228/PropMonster/ToyPlanes_DieCastMetal/DINKY%20TOYS/DinkyToys998Brit314003.jpg)
http://i20.photobucket.com/albums/b228/PropMonster/ToyPlanes_DieCastMetal/DINKY%20TOYS/th_DinkyToys998Brit314004.jpg (http://i20.photobucket.com/albums/b228/PropMonster/ToyPlanes_DieCastMetal/DINKY%20TOYS/DinkyToys998Brit314004.jpg)
http://i20.photobucket.com/albums/b228/PropMonster/ToyPlanes_DieCastMetal/DINKY%20TOYS/th_DinkyToys998Brit314005.jpg (http://i20.photobucket.com/albums/b228/PropMonster/ToyPlanes_DieCastMetal/DINKY%20TOYS/DinkyToys998Brit314005.jpg)
http://i20.photobucket.com/albums/b228/PropMonster/ToyPlanes_DieCastMetal/DINKY%20TOYS/th_DinkyToys998Brit314006.jpg (http://i20.photobucket.com/albums/b228/PropMonster/ToyPlanes_DieCastMetal/DINKY%20TOYS/DinkyToys998Brit314006.jpg)
http://i20.photobucket.com/albums/b228/PropMonster/ToyPlanes_DieCastMetal/DINKY%20TOYS/th_DinkyToys998Brit314007.jpg (http://i20.photobucket.com/albums/b228/PropMonster/ToyPlanes_DieCastMetal/DINKY%20TOYS/DinkyToys998Brit314007.jpg)
http://i20.photobucket.com/albums/b228/PropMonster/ToyPlanes_DieCastMetal/DINKY%20TOYS/th_DinkyToys998Brit314008.jpg (http://i20.photobucket.com/albums/b228/PropMonster/ToyPlanes_DieCastMetal/DINKY%20TOYS/DinkyToys998Brit314008.jpg)

That's a great looking airplane model. It has clean classic lines. I wonder how many 1:1s still exist of it...

Since I don't know anything about these models, I have to ask: how large is it and what is its scale?

Wing span 8 3/4"

Wing span of real plane 142 ft 3 in (1707 in)

1707 / 8.75 = 195

So plane is approximately 1:200.

There may be a real one on display at a British aeronautics museum in Duxford. Or, some might even still be extant in Cuba! The Cuban airline Aerocaribbean operated them into the 1990s.

Thanks for the answers. That's a nice size for a diecast plane. Not too small & not too large. I'll bet there are also 1:1s of that one that pop up here and there in old B&W movies.

How cool it would be to visit Cuba to see all of those vintage cars still trundling around, held together by who-knows-what (and to see and hear the old airplanes flying over...just maybe not to fly in them!)

In fact I remember a scene with one landing in the 1966 Man from UNCLE movie when Napoleon & Ilya go to Greece.