Hard Silver Solder

[meco3hp]

5 parts copper
2 parts silver
3 parts zinc

Melt the copper first, add the silver, and lastly the zinc.
Stir rapidly when you add the zinc, to spread the zinc through out.
Pour into a mold, cool, and then roll out into a sheet to about 18 ga.
Cut strips to your needs. Avoid breathing fumes at all times. Zinc fumes are deadly!

Remember to take the proper precautions when working with chemicals.

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[ThomasPowers]

IIRC old british silver coins can be used for "medium" silver solder.

Had a friend who was a member of the worshipful order of goldsmiths in England...

Thomas