Size: QUART
Color: BLUE-AQUA
Closure: zinc cap
Appearance: shiny glass
Condition: edge flaking on the ground mouth (one is not yet detached)
Embossing: strong, and note the backwards-embossed "N" in the DUPONT logo, a mold-maker's error
Base: a large "G" logo enclosing a "1X", indicating that the manufacturer was the Gayner Glass Company of Salem, NJ
Age: late 1800's
Availability: a rare proprietary brand Mason jar
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