However, the general style, shape and glass color of a container can give strong clues to approximate age. That book is the best reference work ever published on glass manufacturers’ marks on bottles, but it does contain many errors which have been discovered over the last several decades since it’s publication. Fletcher, Norman “Ted” Oppelt, Dick Cole, Harvey Teal, Dean Six, Tom Neff, Albert Morin, John P. (Eventually, I may add a page on this site with lists of books by some of the above-named persons which I found to be of most value.Other sources of information I have used (including reference books, magazine articles, websites, and in some cases, email or voice communications) would include: Helen Mc Kearin, Rhea Mansfield Knittle, Stephen Van Rennselaer, Harry Hall White, Alice Creswick, Dick Roller, William S. In the meantime, you might try an internet search for more information on these names……there is a wealth of information out there, with many books in libraries and/or online pertaining to glass history, antique glass collecting, glass container manufacturing, and related fields).
I do my best to make it interesting with interesting chemistry facts or stories and safety precautions to follow in the home and laboratory...
From the standpoint of most collectors of antique bottles, the name and location of the company the bottle was made for, and the name of the product that was originally contained in the bottle (one or both of which may be embossed on the bottle) is often considered to be of more interest or importance than the glass factory where the bottle was actually manufactured.
However, this site is geared with more emphasis on the actual themselves.
From there I like to build on this solid foundation.
I know that many chemistry students who come to me for tutoring are to the point where they are already struggling and are far along in the class, so I try to teach the basics as Im working through the more advanced material such as thermodynamics, kinetics, equilibrium, acids and bases, coordination chemistry, nuclear chemistry, organic chemistry, etc.