Barry,

It could have been Victoria Spivey, she made a come back in 1960 and started her own record label in 1962, so she might well have shared a bill with Otis Spann in the mid sixties.

Jock,

Even 'collectible' albums are rarely worth enough to make it worth parting with them, especially if you like the music (which is, of course, the real value!).

Brian