Hi Nan -
I googled "Dirilyte" and found a couple of pages that might answer
The first: http://pages.tias.com/stores/jjt
Includes this paragraph:
The metal alloy used to manufacture these items is much harder than
silver and has the same color and tone of gold, yet much more
durable. Dirigold originated in Sweden in the early 1900s. The
company later moved to America and was forced to change the name to
something other than Dirigold, as they claimed that name was
misleading to the public. They renamed it Dirilyte. The product was
manufactured in Kokomo, Indiana and ceased operations in the 1980s.
Dirilyte has graced the finest tables in the world, from European
royalty to the White House.
Another page responds to a reader's question about how to how to
polish this product by pointing to other discussions asking the same
One respondent said: "The Dirilyte Line Company is still in business
in Warsaw IN. They make a polish for Dirilyte which is excellent. I
have used it on brass candlesticks as well as on my Dirilyte. It was
better than any other polish I have ever tried."
And another said, "I grew up with dirilyte and would very much like
to have my own. My mom has all pieces -- flatware, coffee and tea
service, serving pieces, and glasses. The stuff made before the 70s
was not sealed and requires a special polish made by the company. The
stuff made after the 70s is "sealed". Be careful about polishing that
stuff. polishing is a pain and I remember spending hours getting the
"purple" off. you can have your dirilyte sealed by the company."
And another: "I just tried a product called "Peek". It also polished
silver, jewelry, etc.! It is less toxic than the Dirilyte polish."
[following the link takes you to a page on Amazon.com where you can
order the product.]
Anyway, that gives you some ideas. You can follow the links from the
page above to the rest of the discussions.