The new compilation on Stylus of Decca Instrumentals 1956 - 1979 includes a chirpy 'B' side from Joe Brown called 'Swagger'. Trev dates it as released in Feb 1960. Listen to that guitar with repeats bouncing after every note - he's using a echo machine! However, it can't be just any old echo machine! It has to be the one that Joe gave to Hank to try "because he couldn't get on with it" as Hank says in It Was In Tune When I Bought It. The timing seems about right, so if you want to hear THAT Meazzi before Hank got his hands on it, listen to 'Swagger'.
Ray L