Thanks to PeterMC’s timely comment I have returned my attention to the Coronado rear wheel.
It is missing four spokes which were broken by a wheel locking system intended to stop the rear wheel turning when parked and locked.
To replace the spokes, I need to remove the rear cassette (or freewheel?) and which seems to need a 2 pin cassette remover, that I don’t own.
Below are some photos of the rear hub, the rim showing some missing spokes and nipples, some other bent spokes, and (the presumably original) Hutchinson tyres. 65PSI seems pretty high for this type of tyre? The tyres are pretty perished, so will need to be replaced I think. The Dunlop/Woods valve inner tube was replaced with a cheap new Decathlon Schrader tube which is holding perfect pressure after 6 months unattended. Not as per original spec, but likely more effective.
I know it’s a rookie question, but any thoughts re: whether this is indeed a cassette or a freewheel? It is marked as a Suntour Perfect XH, and has a 16?mm cone nut on the axle (which also seems a little bent…). The teeth seem in perfect condition, though pretty dirty!
Of course, it would be much easier just to get a new wheel, tyre and hub, but then why make things easy when you can make them really complicated and drag them on for years!?