As Berge noted in referring to bottles, the " This bottle dating "key" is a relatively simple "first cut" on the dating of a bottle. Please be aware that in order to gain the maximum information about any particular bottle e. Unfortunately, the complexities of precisely dating bottles is beyond the scope of any simple key. A substantial amount of bottle type specific information must be reviewed by a user to increase the probability of dating accuracy.
Glass Bottle Marks: Glass Manufacturers’ Marks
Historic Bottle Website - Homepage
My name is David Whitten. Small medicine vial; Telegraph line insulator; Hobnail votive candle holder; Bromo-Seltzer bottle; Square ink bottle; Bixby Shoe polish bottle. What is Glass? Where was it made?
How to Identify Vintage Antique Brown Glass Bottles
One can find quite a bit of information on my web site and across the Internet about dating bottles based on whether the mold seam goes up and over the lip or if the bottle has a 'pontil' on the base. Even given these descriptions beginning often mistake a machine made Owen ring on the base of a bottle with a pontil. Specifics on what a pontil looks like or how to tell the age based on the mold seam can be found in Bottle Basics. While these two characteristics are often a strong clue to age, readers will be further helped by developing an understanding how the various categories of bottles changed over time.
Also included are marks seen on other types of glassware including tableware and industrial glass items such as railroad lantern lenses. Entries on some of the more commonly encountered brand and company names for instance, Bromo-Seltzer seen embossed on bottles are also included, as I frequently get questions about them. This is a typical example, as seen on the bottom of an emerald green bottle with a date code of It was made at their main glass plant plant 7 located at Alton, Illinois.