Greasy Truckers Party
Various Artists, Greasy Truckers Party (??? 1972)
Double live LP capturing a London benefit concert from 1972 (check out this review at Head Heritage for a ton more detail than I could manage) featuring Man, Brinsley Schwartz, Magic Michael (?) and last but definitely not least, two monolithic space jams by Hawkwind. For some semi-bootleg soundboard shit from the '70s this has really great fidelity (although, my copy has a skip/pop through the beginning of the second track ... sorry).
Hawkwind - "Master of the Universe"
Hawkwind - "Born to Go"
"Silver Machine" (1972)