See accumulator.
coin chute
In a coin piano, the metal (usually) chute in which a coin is inserted for playing a tune. Usually in two parts, the outer chute (which receives the coin) and the inner chute (which connects the outer chute to the coin switch or accumulator). Typically includes a magnet to reject steel slugs to prevent free play.
coin piano
Coin-operated piano, especially an electric coin-operated piano. * Synonym: nickelodeon
coin slide
A push-pull coin chute.
comb base
The base upon which a musical box comb rests. Synonyms: trestle, brass pedestal, plinth.