How do I identify old bottle markings?

Identify the Type of MarkingsEmbossed labels or product names often appear on the sides of bottles. Makers marks often appear on the bottom of the bottle. Pontil marks are circular shapes on the bottom of the bottle that indicate that the bottle is made of free-blown glass.More items

How do you identify bottle markings?

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).

Are old bottles of whiskey worth anything?

Old and rare doesnt mean something is very valuable. The value is determined by what others are willing to pay for it and what you can collect for it. Whiskey doesnt age or improve in the bottle like wine does. Whiskey that was bottled decades ago will still taste similar to the day it was bottled.