Thanks to Todd Augsburger for the information about the Piano Melodico
G. Racca Club, and also for correcting my careless spelling.  I remember
the "Melodica" as a kind of anemic plastic cross between a harmonica,
accordion, and recorder ... far from the strident and positive Racca
piano.  

Incidentally, I'd still like to find more Melodico rolls.

Michael Woolf
New Zealand (Labor Day holiday on Monday; are you envious?)