The classical way to patina bronze, like Michelangelo, Rodin, etc. . . is urine. They would dig pits to fill with horse pee over their work. It gives a nice dark brown/green depending upon the urine properties and possibly some of the pit soil. I know this works as in the last year I worked with a Master Stone Carver who also works in brass and bronze for a granite broken column with a sprig of Acacia cast and finished in this manner. The odor may remind you of where you did the work. Rich (PT-2)Today I received a delivery from China with FedEx. 99,9% of the readers will smile. But it is my first delivery through this company. Do you have to get that old first? I know this from "Cast Away" with Tom Hanks. This delivery reached me without crash from Tom from CAF.
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I saw the gun barrels in Gennaro's report of the La Belle and Tom sent me some on request. Thank you very much.
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I have started to remove the casting burrs and smooth and straighten the cannon barrels a bit. They have the royal crest and the crest of the Comte de Vermandois, Louis de Bourbon.
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Old and new gun barrel compared. Whether the cannon barrels will be patinated again a bit, I don't know yet. The originals were made of bronze and the models will get darker again on their own.