Dating glass bottles

dating glass bottles

How do you date antique bottles?

Dating antique bottles requires knowledge of the evolution of bottle technology and the ability to research manufacturers and bottling companies. Examine the bottles symmetry. Asymmetry is an indication of a handblown bottle. Look for mould seams. The earliest bottles were handblown by a glassblower with a blowpipe and lack seams.

Why is it important to determine the date on a bottle?

Determining the date of a bottle helps the collector to determine the value of the bottle before purchasing it or trying to resell it. The use, type of glass and even the moulding of the bottle can help the collector identify it.

How can you tell how old a glass bottle is?

The use, type of glass and even the moulding of the bottle can help the collector identify it. Observe the shape and colour of the bottle. The shape of the bottle can illustrate what it was originally used for, helping you to identify its purpose and approximate age.

What is a bottle dating key?

This bottle dating key is a relatively simple first cut on the dating of a bottle. While running a bottle through the key questions, the user is frequently directed to move to other website pages to explain diagnostic features and concepts as well as to add depth and/or precision to the initial dating estimate.

How do you age a bottle?

Perhaps the most obvious key to age is the mouth of the bottle. As a general rule, screw top bottles (except canning jars) were made after 1910 or so. Cork top bottles generally vanished at the turn of this century.

How can I find out the date on a bottle?

The Blasi (1974) and Holcombe (1977) books in particular have excellent overviews on what is known of the product history and supports the date ranges determined above. A search on the internet will turn up some scattered references to the bottle - primarily ones that are for sale or just referenced - but little historical information.

How can you tell how old a wine bottle is?

Perhaps the most obvious key to age is the mouth of the bottle. As a general rule, screw top bottles (except canning jars) were made after 1910 or so. Cork top bottles generally vanished at the turn of this century. Look closely at the mold seam and where the lip meets the bottle.

What is a key concept in historic bottle dating?

A key concept in historic bottle dating is the high probability (i.e., high likelihood) that the age range noted for a particular diagnostic characteristic is accurate for a given bottle which has that diagnostic feature.

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