D a w n dating
These variations in punctuation were common and probably reflected the whim of the mold engraver, thus having little or no importance (i.e. Some numbers served as date codes, or as some other type of internal code used by the factory.
for assigning date ranges) especially on marks of pre-1900 bottles. In the great majority of cases, bottles with only numbers on the base are difficult, if not impossible, to attribute to a specific glass maker.
Often, I simply don’t know the answers to a lot of questions that are sent to me.
The wide world of glass and bottle collecting is a TREMENDOUS field and there are many, many unanswered questions still out there concerning bottle markings, bottle manufacturers’ histories, etc.
he has a Usually embossed on the base, marks may also appear on the lower heel area on certain types of bottles, especially sodas.
On earlier flasks, fruit jars, and soda bottles, and especially examples produced in the mid-nineteenth century period (1840s-1860s), the full factory name or initials may be embossed across the front.
The method compares the abundance of a naturally occurring radioactive isotope within the material to the abundance of its decay products, which form at a known constant rate of decay.
and is now the principal source of information about the absolute age of rocks and other geological features, including the age of fossilized life forms or the age of the Earth itself, and can also be used to date a wide range of natural and man-made materials.
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).Researcher/historian Tod Von Mechow has compiled a large quantity of in-depth information on antique beer bottles, including both pottery and glass bottles.I would encourage anyone interested in makers’ marks on beer bottles (and soda bottles) to check out his site…..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.