Kerr jars dating. How to date old ball mason jars (with pictures) - wikihow
Jars not made by machines were free blown; no mold was used. Ignore the Mold Number How about that big number on the bottom of many jars? It is less expensive than any other items of Kerr jars.
The BPA-free lids and bands are a great option for unique creations, gifts and home decor. To my understanding these glasses were made from sometime in the s through the 50s, they were very common in the 30s and 40s when many people also used them as drinking glasses, it would be difficult to date a specific jar beyond that range without more specific information on dating Kerr items, which I've always had difficultly finding.
Kerr Glass Manufacturing Corporation
Observe the finish of the jar. The advent of Kerr Mason jars brought a revolutionary change in the use of canning jars.
Instead, I mean how do you tell how old your Ball jar is? Date ranges are estimates.
A rough base means the jar was made between and This listing is for the blue version. Since the beginning Kerr jar Company has been producing and providing unique and attractive canning jars for food preservation. Kerr used the patents to create a revelation in preserving food.
Look for small scars at the bottom and look to see if the design is more modern. Check the logos below against the logo on your jar.
Also see "A H K". In their first plant opened at Altoona, KS.
Kerr jar Company introduced wide and open mouth canning jars to make the canning process easy to easier. Popular items of the Kerr Mason jars: Kerr wide mouth Mason jars are affordable and easy to use.
The number has nothing to do with when the jar was made.