Item 1:
NOS 2 units marked "TRIGON 6CA7/EL34",no markings other than maker and type, black base, original box printed "TRIGON LONDON", twin halo getters, crimped plates (4 in each side), 2 slots in each plate, glass has one piece top, @ US$50 each
Item 2:
NOS 1 unit marked "EL34/6CA7 MATSUTISHA ELECTRIC IND. CO. LTD. OG OG
Made in Japan", black base, non-original boxes, single halo getters, glass
has join in top, @ $US40 ea