Arthur W.J.G. Ord-Hume's book, "The Musical Box: A Guide For
Collectors", says on p. 283 just this: "CPC: Unidentified casting
mark seen on some cylinder musical box comb bases."
Matthew Caulfield,
Irondequoit, New York
(Message sent Sat 3 Jul 2010, 23:59:15 GMT, from time zone GMT-0400.)