That cyclemaster is lovely Neil
Thanks for posting up that, brought back a few memories...
That's a chunky old pushbike it's in.. I believe it was a frame especially designed for the job although any reasonably meaty frame would accommodate the Cyclemaster....
...bit more info on the picture Jim its a 1953 Mercury Cyclemaster
1953 Mercury Cyclemaster
This Cyclemaster was very well restored by its previous owner.
It’s a rare model, fitted with Webb front forks.
Mercury Cycle Co is an interesting company: they were owned by the British government and established to export bicycles after WW2. They did not supply bicycles direct to the public, but manufactured frames for the Cyclemaster company.