@
tonyfourdogs - It would be great to see closeups of the brake bridge, seat stay caps (aka top eyes) and the frame number, if nothing else, for future reference.
From the details I can see in the posted pics, I'd agree with @
juvela and @
rustystrings61 about the cable stop and top tube guides being later additions.
The brake bridge, dropouts (which I think are
Chater-Lea) in combination with the Nervex lugs, serial number format and (possibly) seat stay caps I think are are all consistent with
Hill Special.
Since this frame is built with Nervex lugs, it would most likely be their 'Road Path' model from 1953 (according to the frame number list on
hill-special.co.uk).
So, as @
rhm pointed out, a nicely made (and nice looking) frame. They
were advertised as 'the Rolls Royce of Cycles', after all.
Here are some pics:
