The Comet may have been the first British jet airliner and the first in commercial service but it is not too well served by Museums. I guess the stragglers got chopped up when they had served their purpose. Everett is home to a Comet 4 though with the Museum of Flight’s restoration facility being home to one. Progress on it has been slow but steady. I have seen it a few times over the years. You used to be able to walk outside and see the bits stuck outdoors but now there is commercial service at Paine Field, the ramp is a bit more secure.
On my most recent visit, I wandered through the cabin and had a look in the cockpit. The cockpit did result in some HDR shots and I wrote a post about that here that discussed the different results Adobe software provides for HDR. These shots just give you an idea of what the early days of jet aviation brought to the flying public.