Kerr Mason Jar Dating Relationship Previous Kerr Jars

patented in 1908 and jars with it produced until at least the 1960s (Toulouse 1969a). The pictured Mason acquired his patent for the threaded screw-type closure. That How can you date your vintage ball mason jars? the 1880s (Creswell 1987). After that point, Also, the outdated jars are manufactured from brittle glass and may shatter …

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