Puzzler #172

[jolly roger]

This stiff card board.
Roger



At 12:52 AM 4/14/01 -0400, you wrote:
>I did slip a thin piece of cardboard in the piano between the pinblock and
>the drop screws. It hit the hammers somewhere about 8:00 (or 4:00), meaning
>it hit the hammers at a lower point than the pinblock would have hit them
>had I decide to let the pinblock rip all the hammers off upon extraction.
>Needless to say, this alone did not allow for easy removal. What the heck is
>Bristol Board anyway?
>
>Subject: Re: Puzzler #172
>