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How do you take the finish off an old engraved silver trumpet?

Just trying to restore a 1880 cornet. I thought it was brass, but it is silver. Could I use a liquid stripper? Or a heat gun ⇦this on eBay or Amazon [affil links] ?
Any suggestions?

Marc Danzeisen
music - Burbank, California, USA
2006

Try 300 gm sodium thiosulphate ⇦this on eBay or Amazon [affil links] solution(dissolve it in 1 lit water). Precipitated chalk ⇦this on eBay or Amazon [affil links] mixed with water and few drops of ammonia ⇦this on eBay or Amazon [affil links] can be used too. Hope it helps and good luck!

Goran Budijar
- Zagreb, Croatia
2006

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