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Spring Index

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Spring Index

A named craft tool / part lemma (Spring Index) drawn as an exact public-domain workshop phrase.

Spring Index is historically related to Water.
watchmakers-handbook seats orphan spring-index beside water as a first craft peer — object speech, not a text-container or tradition dump.
from Claudius Saunier (tr./ed. PD) · The Watchmakers' Hand Book, PD Gutenberg #76850
historically related to · sourced · documented

sources

The Watchmakers' Hand Book · Claudius Saunier (tr./ed. PD)
Claudius Saunier, The Watchmakers' Hand Book (PD Gutenberg ed.).