Originally Posted by foibled
I've learned through experience that silver soldering/hard soldering/brazing is overkill. Any soft solder will do as that is what they're made with anyhow. Preferably you'd want to use a lead free solder but it really doesn't matter.
lead solder also is no where near as brittle (of course depending on composition). the lead free solder used specifically on pewter (bismuth based IIRC) cannot even get a sharp 90* bend in it with out breaking and any force on the seam will split. if your going to solder this stem i see no reason a lead solder would be an issue honestly