*changed title now I know what its is*
Some time ago I was given a push mower by an old friend, and it has remained in my shed for longer than it should.
Recently I started looking at it with a view to restoring it to working order (I want to use it rather than having it as an ornament).
The mechanism is completely jammed, and neither the wheels nor the reel move at all.
My first thought was to remove the wheels, but having removed the wheel covers there is no obvious way to proceed further. There is what _might_ be a removable cover in the centre of the wheel, but trying to prise it off just started bending the metal and no sign of it moving, so I didn't risk any more forceful action.
Can anyone help me
i) identify the mower
ii) point me at a parts or exploded diagram, or a manual or...
iii) suggest how I need to proceed.
I'm a reasonably competent DIYer, but have no experience with old mowers at all, so an assistance would be gratefully received.