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Atlas Mason jars hold a distinct appeal, reflecting a past era and demonstrating the evolution of food preservation methods. As vintage glass containers, they have drawn collectors who appreciate their historical significance and timeless design. This comprehensive beginner’s guide offers an in-depth look at Atlas Mason jars, including their origins, identification features, dating methods, and factors that influence value.
Values of Atlas Mason Jars
The value of an Atlas Mason jar depends on factors such as rarity, age, color, and condition. Rarer colors, like green and amber, typically command higher prices, while clear and aqua jars are more common and less valuable. Age can matter, but Atlas jar value depends more on the exact variety, color, scarcity, size, closure, condition, and collector demand than on age alone.
Properly dating an Atlas Mason jar is essential for determining its value and historical significance. To determine the age of an Atlas Mason jar, consider the following factors:
Reference Chart
| Jar Type | Age Range | Value Range |
|---|---|---|
| Atlas Mason’s Patent | 1896 to 1919 | Aqua/blue-green: $15 – $60 Sun-colored amethyst: $40 – $75 Cornflower blue: $30 – $50 Apple green: $40 – $240 |
| Atlas E-Z Seal | 1904 to 1950s | Clear: $12 – $30 Aqua/blue-green: $20 – $65 Sky blue: $25 – $60 Yellow-olive green: $50 – $100 Amber: $50 – $100+ |
| Atlas Strong Shoulder Mason | 1919 to 1950s | Clear: $12 – $35 Aqua/blue-green: $20 – $65 Sun-colored amethyst: $25 – $65 Citron/apple green: $35 – $75 Cornflower blue: $60 – $130 |
| Atlas H over A Mason | 1923 to 1960s | Clear: $10 – $35 |
$25, etsy.com
$35, etsy.com
How to Identify and Date Atlas Mason Jars
Properly identifying and dating an Atlas Mason jar is essential for determining its value and historical significance. To determine the age of an Atlas Mason jar, consider the following factors:
Mold Marks and Numbers
Numbers on Hazel-Atlas bases may be mold numbers, catalog/model numbers, factory-related codes, or later date codes, depending on the piece and period. They should not be read as a production year unless the specific numbering system is known.
In addition to mold numbers, Hazel Atlas Mason jars often have an embossed logo on the bottom. The most recognizable Hazel Atlas logo is a capital “H” with a smaller capital “A” inside, forming a distinctive monogram. This logo can help confirm a jar’s origin as a Hazel Atlas product. However, keep in mind that logo variations may exist, and other markings or logos could also be present, depending on the specific production period and factory location.
A missing or faint base mark does not automatically suggest a reproduction. Some earlier or worn Hazel-Atlas marks can be faint, and not every Hazel-Atlas piece was marked the same way. Use the full jar, including embossing, closure, glass color, finish, and mold characteristics, before judging authenticity.
Closure Types
Atlas Mason jars have two primary closure types: the screw-top and the lightning seal. The screw-top jars have a threaded band that holds a metal lid in place. Lightning seal jars have a wire bail and glass lid that clamp down to create an airtight seal. Both screw-top and wire-bail styles were used during overlapping periods.
Observe the jar’s lid and closure mechanism. Over the years, the design or materials of lids and wire bails may have changed slightly. Comparing your jar’s lid and closure to known examples from different time periods may help you date the jar more accurately.
Glass Color
Atlas Mason jars were produced in various colors, including clear, aqua, blue, green, and amber. Glass color can help, but it should not be used alone to date an Atlas jar. Clear jars became common in later production, while aqua and other tints are often associated with earlier or less-common examples, but color varied by batch, product line, and production period.
While certain colors of Atlas mason jars may be more vibrant or saturated depending on the production period, this is not a definitive rule. Factors such as manufacturing techniques, raw materials, and the specific glass batch can affect the jars’ color.
However, older jars, particularly those produced in the early 20th century, generally have a more saturated aqua or blue color. This is because the glass-making process and materials used at the time often resulted in more vibrant colors.
Condition and Markings
The jar’s overall condition can offer clues about its age. Older jars may show signs of wear, such as scratches, chips, or fading. However, this is not definitive, as a well-preserved jar can still be quite old.
Examine the jar’s base for any manufacturing marks, such as mold seams. Most Atlas jars collectors encounter are machine-made, so mold seams and base marks can help confirm machine production. However, seams alone usually won’t give a precise production date; the embossing, closure, base mark, and jar style matter more.
History of Atlas Mason Jars
Atlas Mason jars were produced by Atlas Glass Company and later Hazel-Atlas Glass Company. Hazel-Atlas formed in 1902 from several related glass businesses with roots in Washington, Pennsylvania, and became closely associated with Wheeling, West Virginia. The business thrived in the early 20th century, becoming one of the largest Depression-era glass manufacturers in the United States.
The company produced a wide range of jars, including the well-known Atlas Strong Shoulder Mason and the Atlas E-Z Seal, which used a lightning-style sealing system. Hazel-Atlas became part of Continental Can in the late 1950s, and the Hazel-Atlas glass plants were later sold, largely to Brockway Glass, in the mid-1960s.
