Seeing that photo of the Cossor 1035 reminded me of my first scope and first real boat anchor, a Cossor 1049
https://www.thevalvepage.com/testeq/cossor/1049/1049.htm I purchased it from a little shop called Radio Service in New Street, Chelmsford sometime around 1966, it used to belong to Marconi, a factory just a few yards away from the shop and was a clear out when they switched over I believe to Tektronix scopes. I those days my bench was an old dining table in one corner of my bedroom.
I was a spotty teenager, doing an electrical engineering apprenticeship and dabbling in electronics in the evenings and weekends with a TMK500 meter, this Cossor 1049 and a very beat up but still working Advance signal generator (with a magic eye) and a Eagle signal generator and I was playing around with radio, TV and audio and I took out subscriptions to two magazines for the weekly service charts / manuals that they used to publish, one was called ERT (Electrical and Radio Trader) the other was called Wireless and Electrical Trader, but everyone called it Trader. I built up quite a collection of service manuals but then later I discovered girls, interest in electronics waned, 1049 suffered a burnt out mains transformer and the a replacement transformer would have to be custom made and was about 6 months wages back then so it went off to the dump along with the service manuals and signal generators went up in the loft and became rusty.