GLP Co (jewellery hallmark)

G.L.P., or G.L.P.CO, is the hallmark for George L Paine & Company. Founded in 1909 in North Attleboro, Massachusetts, and last known in business in 1922. Their products were mostly solid gold, 10k gold front and gold-filled jewellery. There are no markings to indicate gold content.

1909 to 1922

 
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