Dating drey canning jars


22-Jan-2015 19:56

This “MASON’S / PATENT / NOV 30TH / 1858” phrase was originally embossed on countless glass fruit jars (canning jars) ranging in age from circa 1858 to the early 1920s.

Note: many reproductions of these jars have been made (from the 1970s all the way up to the present time), which are discussed later in this article.

: It has come to my attention that some oddly colored Nov 30th 1858-type jars (shades of red and yellow, probably other colors exist) have recently surfaced for sale on auction sites. We can be assured that ALL jars with this mold number are reproductions (modern fakes or ‘fantasy’ jars). If anyone has further info on this type of jar, or knows of other mold numbers that ID fakes, please contact me! Also…….of August 4, 2014, unusually colored midget (Consolidated Fruit Jar Company logo) NOV 30TH 1858 jars have been reported with a mold number on the base: H39s (the “9” is backwards and the “S” looks somewhat like a backward “Z”). ********************************************************************** John Landis Mason was awarded patent #22186, issued on November 30, 1858 by the U. Patent & Trademark Office (actually the patent was termed an “Improvement in screw-neck bottles”), for his invention concerning the process of creating a threaded screw-type closure on bottles and jars.

Similar screw-threading been done before on some bottles, but the process of forming the upper lip area of the container (so that it was smooth, even, and sturdy enough for a lid of standard size to be screwed thereon) was difficult and expensive to do properly, often with unsatisfactory results.

Stop by and visit our Antique Mall in West St Paul, Minnesota. This is a new website for us at West St Paul Antiques. I'll be working on this site over time so bear with me.

It should be finished by the end of 2010 with over 500 pages at that time and 900 pages by the end of next year.

dating drey canning jars-43

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Questions remain on exactly which companies made these jars during the early years, since the 1858 patent evidently lasted 13 years (or 20 years, counting a patent reissue), and ostensibly during that time period no one was allowed to produce the jars because of patent infringement issues unless they were granted permission by Mason, or the licensed holder of the patent.

In any case, throughout the next 60-odd years, production of jars with the Nov.



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