objectCopper BlueObjectsA named craft tool / part lemma (Copper Blue) drawn from public-domain workshop speech (metals / japan-polish / carriage / pottery / glue / paint / turner / hat / soap / mend).Copper Blue is historically related to Iron.henley-formulas seats orphan copper-blue beside iron as a first craft peer — object speech, not a text-container or tradition dump.from Gardner Dexter Hiscox (ed.) · Henley's Twentieth Century Formulas, Recipes and Processes, 1914 (Gutenberg #53143; PD in the USA)historically related to · sourced · documentedsourcesHenley's Twentieth Century Formulas, Recipes and Processes · Gardner Dexter Hiscox (ed.)Gardner D. Hiscox (ed.), Henley's Twentieth Century Formulas, Recipes and Processes (1914).