Pairpoint Lamp Marks

Patented July 9 – 1907 Mark on Lamp Shade

Patented July 9 - 1907 Mark on Lamp Shade

The “Patented July 9 – 1907” mark can be found on some Pairpoint lamp shades. It should be stamped in appearance, not hand written. 1907 correlates with the date that Pairpoint patented their electrolier lamp.

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