A balloon shaped Osram PX25 with continuity and filament springs that have not lifted, together with a GEC KT66 in original box and probably NOS and a Cossor 45-IU in original box and BBC test label
Various early valves all with continuity (no other test performed) including Tungsram P25/500 power output triode, Pip-top Marconi R5v with metal base and early BBC Logo, and others
A collection of rare early valves including a Cosmos piptop, Philips 1807, Mazda AC/SG, Cossor Stentor 2, Pen23, Neutron, Adey HLC210, Osram U16, Majestic G80, Osram DEL210, Marconi HL?, Europa AC/L, ONYX, Marconi L2/B, Marconi HL210 and others all continuity tested (no other test performed)