Recorded July 4th, 1973, this is Grappelli with Jack Sewing, Daniel Humair, and Marc Hemmeier. My copy via Mystery Train records in Gloucester MA.

Black Lion was a label Alan Bates created in 1968 – in 1973 they started to have distribution through Audiofidelity (the AFE logo on the rear cover here). Lots of great Black Lion releases are out there, some reissued by Org Music and the like but you can still find decent 70s pressings as well.