Is there a firm in the US now selling the tarnish free silver sheet?
Argentum/Argentium is being discussed in another thread
(http://www.ganoksin.com/orchid/archive/200410/msg00609.htm) as a
commercially available no-tarnish (or rather, very low tarnish)
As mentioned in that thread, silversmithing.com lists a number of
suppliers --I can't vouch for the accuracy of the list I just
happened upon it-- at
Some of those indicate that sheet is available though you'd probably
have to contact them directly to verify that.