A quart cobalt Mason's glass fruit or canning jar with embossed Patent Nov 30th 1858; image credit on full record.
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Canning Jar; Mason's, Patent Nov 30th 1858, Cobalt, Quart.
A quart medium cobalt blue Mason's 5 Patent Nov. 30th 1858 glass fruit or canning jar. Strong embossing, base unmarked. Rare and desirable colored jar... [more detail available via subscription]
