Dating bottles by their tops and bases

Numbers on the bottom of glass bottles - Glass Bottle Marks

In these cases, the general style, shape, glass color and other characteristics can at least help narrow down the possible age range of a particular specimen.

Historic Bottle Website - Homepage

A large percentage of bottles are marked with only a number (or numbers) on the base (or the heel), and the truth is that, in embossed in the glass.

Guidelines for Determining the Age of Antique <strong>Bottles</strong> - Historic.

Dating Your Old Bottles

Probably in the majority of cases, single dit numbers are mold numbers, merely serving to identify a particular mold, (or section/mold cavity in an automatic bottle manufacturing machine) that was used to form the bottle or other glass item.(If problems occur with the finished product, it can be easily ascertained which mold or mold section is at fault.) Numbers also serve other purposes, depending on the exact container and/or company being discussed. Some numbers (for instance, 3- or 4-dit numbers on the base of many British bottles) are catalog, inventory, style or desn numbers assned to a particular bottle shape.

DATING BOTTLES BY THEIR TOPS AND BASES

If a number of identical bottle molds are being used simultaneously, each mold would be assned a number.


Dating bottles by their tops and bases:

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