Dating anchor hocking bottles
Deciphering the symbol is often a matter of comparing it to known examples on collector websites or in glass-collecting publications. Manufactured glass jars that feature an embossed maker's symbol often also have a date and location code stamped nearby.
As with the Owens-Illinois Glass Company symbols, a numeral to the right of the diamond symbol indicates a year of manufacture; for instance, a 1 indicates 1941, while the joined O and I symbol, which is newer, uses two numerals as a date code: , for instance.
On earlier flasks, fruit jars, and soda bottles, and especially examples produced in the mid-nineteenth century period (1840s-1860s), the full factory name or initials may be embossed across the front.
This list primarily includes marks that represent the actual glass company that made the container.
This same company later changed its mark to a letter O with an I inside it, using the new marking through the mid-1960s.
In many cases, a glassmaker's symbol or company initials, such as these, appear within an embossed shape on the bottom of the jar, typically in the center of the bottom, but sometimes along the perimeter.
Anchor Hocking® Glass Cracker Jar","department_name":"","product_url":["/store/product/anchor-hocking-reg-glass-cracker-jar/113867"],"brand_id":"4","brand_name":"Anchor Hocking","product_image_name":["Anchor Hocking® Glass Cracker Jar"],"product_image_url":["//s7d2.scene7.com/is/image/Bed Bathand Beyond/216821113867c?
Embossed symbols and markings on a glass jar help determine the jar's origin, its manufacturer and even when it was made.
While some markings such as city names make it easy to determine at least some aspects of the jar's history, others, such as a simple letter "A," may offer little information about the jar itself, other than the mold model used to create it.
A diamond shape with an O in it, sometimes referred to as a Saturn marking, is a common symbol on the bottom of many glass bottles and jars made between the 1930s and 1950s.
This symbol belongs to glassmaking firm Owens-Illinois Glass Company.
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I found several similar bottles online but they all had different maker marks and the No Re-use warning was above the AA logo rather than at the bottom edge of the bottle.