from The Century Dictionary and Cyclopedia
- n. A block of wood split from a larger piece, and of a size adapted to and designed for fashioning into a pin.
- n. Same as wrest-block.
Sorry, no etymologies found.
Nancy Mittens (# 52) -- I've had mine for about 20 years now, and this past summer took my heart in my hands and tore it down and rebuilt it, because the pin-block (the end where the strings are anchored) finally succumed to the Physics Of Tension and started to rotate out as the glue was failng.
The first pin-block projected its third pin as the first word came traveling along the race-way; second block did the same; but the third block projected its second pin!