Vinegar Joe: S/T (1972)
The band's material wasn't nearly as memorable as Palmer's later work, mostly a mish-mash of R&B, funk, pub rock, and jammed-out classic rock. Still, Palmer and (especially) Brooks are dynamic vocalists, and the performances are certainly solid, with a bang-up rhythm section. Album opener "Rusty Red Armour" in particular is a funky little Palmer-led number that stands out as a classic rock shoulda-been.
The record, like most of their work, is sadly out of print, but here's a YouTube rip of the entire album: