Mike,
You may have already seen the following, but here they are anyway.
George L. Miller and Elizabeth A. Jorgensen
1986 Some Notes on Bottle Mold Numbers from the Dominion Glass Company
and its Predecessors. Parks Canada, Ottawa.
This reference is a collection of information on Canadian bottle mold
numbers from a number of glass company catalogs and may help you identify
some of the glass factories making your bottles. I think it is still
available from the Minister of Supply and Services in Ottawa. Another
article you may already looked at is:
George L. Miller and Antony Pacey
1985 Impact of Mechanization in the Glass Container Industry: The
Dominion Glass Company of Montreal, a case study.
Historical Archaeology 1985:38-50.
In 1903, the Owens Automatic Bottle Blowing Machine will be 100 years
old. Is anyone working on Owens Bottles? A couple of us are working on
this subject for a paper at the SHA meetings in January and would like to
know who else might be working on the topic.
George L. Miller
URS Corporation