To set the tone, let's start out with, well, "rarities".. by the Beatles.. I don't see this often.. unlike the US version of "Rarities" this only came out as part of the Beatles 'Blue Box'..
This next one, I don't think I've ever seen on cassette before.. it's a very old issue.. probably 1969 or 1970..
And here's another one that is really rare, and probably unknown to anybody outside of the "Immediate records" fan circle.. (Now there was a record company tale that rivals Stax's own!)
Now to my favorite in this bunch.. Steve Marriot's First solo album.. a hard one to find, in any format..