You may also see mold lines or machine marks. Missing letters, uneven spacing, or other embossing errors provide clues to a bottles age. Specifically, collectible Coca Cola bottles and milk bottles often include letters or marks that indicate the bottles source.

What do the numbers on bottom of glass bottles indicate?

Many bottles carry only a number (or numbers) on the base. These marks often served as some type of mold identification, indicating a particular mold used by a glass factory. If a number of identical molds were produced for making a certain type of bottle, they would often be serially numbered (such as 1 to 12).

How much are empty beer bottles worth?

Every eligible bottle, can or carton you return is worth 10 cents. Reverse Vending Machines offer you cash vouchers, electronic payment (via the myTOMRA app) or the option to donate.

Does depression glass have any value?

Produced by Hocking Glass Company around 1929 to 1933, this green glass cup is a common find. The value has generally held steady around $5 for a single cup for a few decades.

How do you identify Fenton hobnail milk glass?

Check the bottom of the glass for a pontil mark, which Fenton doesnt have.Pontil marks might look like a chip in the glass, a bumpy lump, or a dimple in the bottom of the glass.Fenton has created some offhand glass pieces which do have a pontil mark.