After reading this thread I dug out the CD (UPbeat URCD 198) of The Lost [18 April]1954 RFH tapes of Ken Colyer band: Ken,Chris, Lonnie, Monty,Ron Bowden, Jim Bray with Bill Colyer on washboard for the skiffle tracks and guesting from the Lyttelton band (who played the first half) Bruce Turner* on alto (I always loved his clarinet playing, familiar to folkies from his work on Radio Ballads and the Critics Group) and Johnny Parker on piano.
Great stuff, although even remastering hasn't improved the balance on the skiffle tracks much.

RtS
(*I never understood the "dirty bopper" furore, hadn't those people heard Johnny Dodds on alto with the Armstrong Hot 5 & Hot 7?)