KING, SON & CO. No. 490 (OMN) by King, Son & Company (Pittsburgh-PA, Company Operated: 1869-1891), c1887 Introduced
NOTE: Sid Lethbridge 2022 - the King No. 490 lamps likely date to 1887 when King was reported as making a line of opalescent polka dot lamps...no later than 1890
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Shape: Lamp & Lamp Shades
Contributor: Rick Graham

Shape: Catalogue/Ads
Contributor: Karen Welch - January 1900 issue of House Furnisher and China Glass and Pottery Review. Maker mislabeled.