Old bottles are among the most fascinating and accessible antiques to collect. From medicine bottles and perfume bottles to soft drink bottles and household containers, these pieces offer a tangible connection to everyday life from centuries past. Whether discovered at a market, inherited from family, or unearthed during a bottle-digging expedition, one of the first questions collectors ask is: “How old is this bottle?”
Fortunately, antique and vintage bottles often contain clues that can help determine their age. By examining the manufacturing method, seams, markings, glass colour, and closure type, collectors can often narrow down when a bottle was made.
Why Bottle Dating Matters
Dating a bottle helps establish:
- Historical significance
- Collectability
- Rarity
- Market value
- Authenticity
In many cases, two similar-looking bottles can vary greatly in value depending on whether they were made in the 1880s or the 1950s.
Examine the Bottle’s Manufacturing Method
One of the most reliable ways to date a bottle is by looking at how it was made.
Free-Blown Bottles (Before c.1860)
The earliest bottles were hand-blown by glassmakers without moulds. These bottles often display:
- Uneven shapes
- Irregular thickness
- Pontil scars on the base
- Bubbles and imperfections in the glass
Examples include early spirits bottles, apothecary bottles, and ink bottles.
Mould-Blown Bottles (c.1850–1910)
As bottle production increased, glassmakers began using moulds. These bottles typically show mould seams but still retain signs of hand finishing.
Characteristics include:
- Visible mould seams
- Applied lips or finishes
- Variations in shape
- Hand-tooled necks
Many Victorian medicine, cordial, and household bottles fall into this category.
Machine-Made Bottles (After c.1903)
The invention of the Owens Automatic Bottle Machine revolutionised bottle production.
Machine-made bottles generally feature:
- Uniform appearance
- Seam lines running continuously through the neck and over the lip
- Consistent dimensions
- Mass-production characteristics
Most bottles produced after the 1920s were machine made.
Understanding Bottle Seams
Seam lines are among the most useful dating clues.
Seam Stops Below the Lip
If the mould seam ends before reaching the top of the finish, the bottle was usually hand-finished and likely dates before about 1915.
Seam Runs Through the Lip
If the seam extends completely through the neck and lip, the bottle was machine made and likely dates from after 1915.
Check the Bottle Base
The base can reveal important information.
Look for:
- Maker’s marks
- Registered design numbers
- Embossed lettering
- Pontil marks
Pontil Marks
A pontil mark is the scar left when a glassblower detached the bottle from the rod used during manufacture.
Pontil marks generally indicate a bottle made before the 1860s and are highly desirable among collectors.
Glass Colour as a Dating Clue
Although colour alone cannot accurately date a bottle, certain colours are more common during particular periods.
Popular antique bottle colours include:
- Aqua blue
- Olive green
- Amber
- Cobalt blue
- Black glass (very dark olive green)
Victorian bottles often display attractive colour variations caused by impurities in the glass mixture.
Embossing and Manufacturer’s Marks
Many bottles feature embossed company names, trademarks, addresses, or logos.
Examples include:
- Chemists and pharmacists
- Soft drink manufacturers
- Breweries
- Perfume makers
- Ink manufacturers
Researching embossed names can often provide an exact location and approximate manufacturing period.
Dating Antique Codd Neck Bottles
Among the most popular bottles with collectors are Codd Neck Bottles, also known as marble-stopper bottles.
What Is a Codd Bottle?
Invented by English engineer Hiram Codd in 1872, the Codd bottle used a glass marble and rubber washer to create an airtight seal.
Carbonated beverages forced the marble against the rubber ring, preventing gas from escaping. To open the bottle, the marble was pushed down into the neck.
This innovative design became enormously popular throughout Britain, Australia, New Zealand, India, and other parts of the British Empire.
How to Identify a Codd Bottle
Typical features include:
- A marble trapped inside the neck
- Pinched chambers in the neck to retain the marble
- Embossed soft drink company names
- Thick glass construction
Dating Codd Bottles
Most Codd bottles date from:
- 1870s–1890s: Early examples with applied finishes and stronger embossing
- 1890s–1920s: Peak production period
- 1920s–1940s: Later machine-made examples
Australian Codd bottles are particularly sought after, especially those bearing the names of local bottlers from regional towns.
Examples from small country locations often command strong collector interest due to their rarity.
Bottle Closures and Their Age
The closure style can also provide dating clues.
Cork Closures
Common from the 1700s through the early 1900s.
Crown Caps
Patented in 1892 and widely adopted after 1900.
Screw Tops
Became increasingly common from the 1920s onward.
Ground Glass Stoppers
Frequently found on perfume, apothecary, and chemical bottles.
Collecting Antique and Vintage Bottles
Bottle collecting remains one of the most rewarding areas of the antiques hobby because examples can still be found at affordable prices.
Popular collecting categories include:
- Codd neck bottles
- Apothecary bottles
- Poison bottles
- Perfume bottles
- Ink bottles
- Ginger beer bottles
- Brewery bottles
- Milk bottles
- Aerated water bottles
Collectors often focus on specific regions, manufacturers, colours, or bottle types.
Final Thoughts
Dating antique and vintage bottles combines history, detective work, and collecting knowledge. By examining seams, manufacturing methods, closures, embossing, and other physical characteristics, it is often possible to determine when a bottle was made and where it originated.
Whether you are researching a Victorian medicine bottle, a rare Australian Codd neck bottle, or a colourful piece of vintage glassware, every bottle has a story waiting to be discovered. Understanding how to date these fascinating objects not only helps identify them but also deepens appreciation for the craftsmanship and history they represent.
At Bygone Relics, we regularly stock antique and vintage bottles from Australia and around the world, helping collectors preserve these remarkable pieces of everyday history.
