Once again Robin thank you for such detailed information. Sadly the pistol didn't come with a owners manual but I already had the info from the link you provided. The pistol, while cased and complete with a few spares and the spanner only came with the 'tube' which allows the use of 2 x 8g CO2 bulbs. I have a plentiful supply of these as I also own an early Hammerli pistol.
I am presently sourcing the tube for this pistol which will allow the use of single 20g CO2 bulbs.
The construction is very basic, no frills but this makes it easier to work on. No 'MyMums Own batteries' in the grip on this beaut!!!
ATB
Ian
F.E.G. GPM 02
Sec/founder Rivington Riflemen. www.rivington-riflemen.eu