Don't expect much out of those P4 - I had similar air clocking ones, under LN2 they ranged from 6.8 to 7.7GHz.
C360s are looking interesting, I never had good clocking air samples from that model.
5634B is a "too late" batch for a C1, all 5634B C1 i ever had sucked, however Gautam managed to get one to 7.6
347 you may have a typo there, most likely it's an L740... Most malay from 2007 and newer are very consistent, 5000-5200 on air, 7400-7600 LN2. Almost not interesting to bin
yes, but I'd like both lines of the PCB texts