Dating bottles by their tops and bases is an important part of identifying and researching antique and vintage bottles. Bottle tops and bases can reveal a lot about the bottles origin, age, and purpose. Antique bottle collectors often rely on the shape, size, and design of the bottle top and base to accurately date their finds.
Most bottle tops and bases are made of glass, but you may also find them with metal closures or stoppers. Bottle tops may feature a variety of shapes, such as round, conical, or fluted. These shapes can be used to determine the age of the bottle and its possible use. For instance, round bottle tops were used in the mid-19th century in beer and soda bottles, while conical bottle tops were used in later years for wine, whiskey, and other alcoholic beverages.
The base of the bottle can also provide important clues about its age and origin. Embossed markings or raised letters on the base can indicate the manufacturer and often include a date code or patent number. If a bottle has a flat base, it is likely to be from a 19th-century American soda, mineral water, or beer bottle. If it has a pontil mark, it is likely from an 18th-century European glassmaker.
To accurately date bottles by their tops and bases, it is important to consider all of these factors in conjunction with other details about the bottle. By conducting research on the shape, embossing, and design of the bottle top and base, collectors can gain valuable insight into the items history. This knowledge can help them determine the true age and origin of their collection.