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Heel Spring

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Heel Spring

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

Heel Spring is historically related to Water.
gunsmith-manual seats orphan heel-spring beside water as a first craft peer — object speech, not a text-container or tradition dump.
from J. P. Stelle & William B. Harrison · The Gunsmith's Manual, PD Gutenberg #71928
historically related to · sourced · documented

sources

The Gunsmith's Manual · J. P. Stelle & William B. Harrison
Stelle & Harrison, The Gunsmith's Manual (PD Gutenberg ed.).