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The hookah base featured very heavily tarnished silver detail. In addition to the sulphur layers, outline of what appeared to be silver chloride products could be seen outlining the detail. The chlorides were dry brushed and treated with 5% formic acid solutions, then buffered/cleaned once removed. The sulphur tarnish was removed with a combination of chalk and silver cloths.
The hookah base featured very heavily tarnished silver detail. In addition to the sulphur layers, outline of what appeared to be silver chloride products could be seen outlining the detail. The chlorides were dry brushed and treated with 5% formic acid solutions, then buffered/cleaned once removed. The sulphur tarnish was removed with a combination of chalk and silver cloths.
17th Century Birdriware after treatment
17th Century Bidriware before treatment