Rose:
Giovanni was a company located in Montreal, I think. I presume it was also started by Italians. I've never read much about them. I only know about them because I came across a piece in am antique store with the the label on it. I found they were separate from Chalet, but I think glass workers went between Chalet, Lorraine and Giovanni. I'd remember reading that Chantilli, the other company, had most of their work done by Chalet.
I was down in Michel Blais' store a couple of weeks ago, and would says he's got a few Giovanni. He also has quite a lot of Czech labeled as either Chalet or Murano. I wish somebody would do a book on 1960's Canadian glass to clear all this up.
David