While doing research into Peerless coin-op pianos I was given
a cassette tape from Harvey Roehl who, in the late 1970s, did an
interview of St. Johnsville piano employees in a local nursing home.

One such employee was a service technician who related that he
remembered a call where a brand new Peerless piano had been installed
across the river in a tavern.  Within two weeks the factory got
a message that the piano no longer played.

When the technician made the call and opened up the piano to inspect
why it didn't play he found the piano full of coins -- the coins had
overfilled the coin box and backed up the accumulator slot.

The prevention probably would have been to "Read the Instruction Manual."

I guess that would have been a nice problem to have had.

Ron Bopp