Thanks Gary, it's one of my favorites. That's a really good question. All the USA made ones that I have seen had the "Matchless" stamped thread collar as you say and all the Canadian ones have "Mazda (MIC)" on the thread collar, MIC being Made in Canada. The bulb assembly is just like a Matchless Star, with the base being sandwiched together between the thread collar and the glass envelope which leads me to believe the unit was probably assembled by the Matchless Co. in the USA. I know GE Canada used the (MIC) stamp on thread collars during the 1930s on most of their Mazda Lamps so it could be GE that assembled these here in Canada. Not sure of who assembled all the parts. There were some differences in parts between USA and Canadian made ones too which makes it tough to determine. Yellow was a color only available in Canada and if I recall right, all USA made ones had painted glass candles and the Canadian had cellophane wrapped ones. Otherwise, I think the bases and metal candle holder are pretty much the same?
Last edited by Noel-kat on Mon May 05, 2014 1:25 am, edited 1 time in total.