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Indelible Ink For Glass Or Metal








Borax one ounce, Shellac two ounces,
Water eighteen fluid ounces; boil in a covered vessel, add of thick
Mucilage one ounce; triturate it with Levigated Indigo and Lamp Black
q.s. to give it a good color. After two hours' repose decant from the
dregs and bottle for use. It may be bronzed after being applied.
Resists moisture, chlorine and gases.





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