I've been asked to solder sterling cufflink findings to some foreign coins. These coins were minted...
I have done it a lot and never had any problem. Any of the coins I
have soldered had a melting point way higher that silver so I
normally use hard silver solder for the job. So just go ahead. Happy
Niels L=F8vschal, Rutsker, Denmark
phone (+45) 56 94 90 60