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Lewis Boyd filed a patent in 1869 for "an improved mode of preventing corrosion in metallic caps" i.e. This innovation kept food from coming in contact with the zinc in the screw caps.Boyd was actually one of three men who gained control of the patent for screw caps and jars originally filed by John L. "Boyd's Porcelain Lined Caps" or zinc screw lids for mason jars were made well into the 20th century (at least the 1950s) and were interchangeable with the millions of mason jars made by hundreds of different manufacturers.These jars freed farm families from having to rely on pickle barrels, root cellars, and smoke houses to get through the winter.For urban families, Mason Jars allowed excess fruits and vegetables to be preserved for use later.The makers of Boyd fruit jars are different from the "Boyd" milk glass inserts.
The information has been obtained from various sources or based on my collecting experience and is true to the best of my knowledge.
They are quart sized and have new and what I would say are sloppy looking wires.
They have smooth lips, are dark amber in color and have Putnam 227 on the base. There could be legitimate Lightning jars with Putnam 227 on base, although I've never actually asked anyone if they have one in their collections.
The familiar term Mason Jar came after its inventor, Mr. Mason, who, at age 26, was a tinsmith in New York City.
He perfected a machine that could cut threads into lids, which ushered in the ability of manufacturing a jar with a reusable, screw-on, lid.
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These jars carry the familiar embossing "Mason's Patent Nov. This date refers to the original patent date, not the actual date of manufacture.