Amp questions ....

So, the Marshall signature model 1992LEM was itself fashioned after Murder One, a 1976-vintage 100w Super Bass. Clearly, he got this after being fired from Hawkwind (in 1975). Still, squinting at old photos/videos of Hawkwind suggest he was using Marshall heads during his tenure there, and a press release from UA from around the time of Space Ritual identifies Lemmy as using a "Marshall 100 watt amp" ...
But what kind?

Some kind of Super Bass head seems probable, but one supposes Lemmy might have used whatever could be scrounged up at the time. More like a Plexi-era (i.e. made before Lemmy joined HW) or more like a Metal-Panel-era (similar to "Murder One", made during or just prior to Lemmy's HW days)?
For comparison, I gather John Entwistle had been using Marshall 1959 JTM100 Super Leads with The Who back in the '67-'68 timeframe, and of course Lemmy is a big ol' Entwistle fan from what I can tell, and so he might have also used Marshall heads from that period -- though, on the other hand, Lemmy might have just used whatever Marshall was most readily on offer new, which in, say, '72-'73 would have been a "Metal Panel" Super Bass of some sort anyway.
Any thoughts?
