Nothing ventured nothing gained.
This rifle was manufactured in 1906 (I think) and deserves to be put back into action.
My Britannia has now been stripped and I am hopeful that I will be able to complete at least a partial restoration.
It should be a fairly simple process as there are so few parts on this air rifle and those built Clyde fashion (ie all heavy metal not fiddly bits!) .
My goal is to replace the leather seal (not so much a seal as a minor interference to air passage) and the spring which appears to be broken.
(excuse my non-technical terminology please)
The end cap and spring compression rod are simply removed and no surprise that there is hardly any compression in the spring as the end cap slot is turned.
A piece of broken spring is hiding at the end of the piston.
The leather seal is a bit tatty (to say the least)
The leather seal is held in place by a flat steel rivet with its end slightly peened over inside the piston (that may be tricky to replace).
there is a brass cup washer in the mix too
leather is 5 to 6mm thick
Piston measures ~ 27.5mm ( a bit odd that at about 1.1" ; but then again, this is definitely not an example of precision engineering)
This breach seal might be very tricky to replace, it looks again like leather.