Ben,
You might find the Parks Canada Glass Glossary helpful in your analysis.
The reference is:
Olive Jones, Catherine Sullivan et al
1989 The Parks Canada Glass Glossary for the descriptions of
container, tablewares, flat glass and closures. National Historic
Park Service, Canadian Parks Service, Environment Canada.
This is available from the Canadian Government Publishing Center, Supply
and Services, Hull, Quebec, K1A 0S9. The price was $14.70 , but it may have
gone up.
George L. Miller