This is an original Hi-Fi Records Mono LP from 1959. Jimmy is joined on stage by Gerry Mulligan and Ben Webster, with support from Mel Lewis, Leroy Vinnegar and Jimmy Rowles. Now that is some group of top jazz talent.
The sound is decent, but the music is the real thing, as you can imagine from the list of players. There’s also some slight groove distortion which is almost unavoidable on vintage pressings such as this.