Songs for a tailor, is the 1969 debut solo release by Jack Bruce, formerly of the supergroup Cream.  Jazz-Rock, Psychedelic perhaps, this album is not what you would expect if you are thinking Cream. The jury is out for me; sometimes I like it, other times not at all.  Here is Theme for an Imaginary Western described by Allmusic as "Bruce's greatest hit that never charted"

a most immaculately hip aristocrat released in 1970 on Frank Zappa's Straight label, STS 1054, is from some rather obscure tape of Lord Richard Buckley performing in 1956 in a small intimate (probably private) setting.  Lord Buckley was a Hip Poet/Comic popular in the 40's & 50's and died in 1960.  Most of the rap's on this record are not available on other recordings of Buckley.  He has been influential on many musicians including Bob Dylan, George Harrison, Jimmy Buffet, Frank Zappa and Tom Waits.  To give you a taste here is part of The Hip Einie:

Bandolier is the fifth studio release by the Welsh Hard Rock/Heavy Metal band Budgie.  From 1975 on A&M SP 4618, I picked this up at a second hand store because of the cover art, and was surprised, it is a good album.  If you are a metal fan, you should keep an eye out for this band. Although not well known they were influential on bands like Iron Maiden, Metallica & Judas Priest.
Breaking All The House Rules:

Buffalo Springfield is the self titled debut album originally released in December 1966.  Shortly after the release, Steven Stills played a song to Ahmet Ertegun (Atlantic Executive) that he just wrote after witnessing riots on Sunset Strip. "hey I just wrote this song, I'll play it for what it's worth".  Ahmet love it and had them record and release the single right away.  They then re-pressed the album and replaced Baby Don't Scold Me with For What It's Worth.  So, with much fewer of the original albums (Atco 33-200) out there the value in NM condition is around $200. This is the second pressing (Atco 33-200A)  from March 1967 with the famous song.

Retrospective, The Best of Buffalo Springfield, was released in 1969 after the band had broken up.  Probably the best choice if you are just looking to buy some music by this band, not looking for a collectible album. This collection of hits is also well recorded and probably better represents their sound than the debut.  A short but hugely influential career, Buffalo Springfield was a sort of springboard band for CSN, CSNY, (as well as each solo career) Poco & Loggins & Messina.
Here is Mr Soul: