objectTrigger SpringObjectsA named craft tool / part lemma (Trigger Spring) drawn from public-domain workshop speech (smith / watch / coach / harness / shoe / finish / pottery / glue / paint).Trigger Spring is historically related to Water.gunsmith-manual seats orphan trigger-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 #71928historically related to · sourced · documentedsourcesThe Gunsmith's Manual · J. P. Stelle & William B. HarrisonStelle & Harrison, The Gunsmith's Manual (PD Gutenberg ed.).