for those considering getting some of these (from the fellow in Sofia), my testing of 10 devices of different types indicates:
1T313B (noname pnp =GT313B) are super low leakage (5 to 10uA), but low hFE as well (41 to 53)
1T320B (noname pnp =GT320B) are low leakage (30 to 50uA). Eight had hFE from 45 to 55, plus one each at 74 and 91.
103NU71 (Tesla npn) are high leakage (350 to 450uA). One was dead, 8 had hFE from 40 to 60, and one was 125 (?!?).
Those npn jobs might be ok as buffers, or low-gain boosters, but they certainly wouldn't be my choice for a fuzzface. It's more evidence that NPN and germanium were never a good combination.
Those PNPs are better, but the HFE is low, which might darken the tone of a fuzzface (and limit the maximum gain, of course). I've got some GT308s on the way. MartyMart has built a fuzzface with them and gives them a thumbs up.