H.S. (OMN) stem by McKee & Brothers (Pittsburgh-PA/Jeannette-PA, Company Operated: 1853-1899), c1859 Introduced
NOTE: Sid Lethbridge 2022 - This pattern appears in the 1859 catalogue as well as the 1862, 1864, and 1868 catalogues. It appears to be very similar to Argus Type 1 by McKee & Bros. but with a different stem. H.S. may stand for Henry Sellers McKee who was one of the McKee brothers.
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Shape: Photo Needed
Contributor: Database Team

Shape: Catalogue/Ads
Contributor: Sid Lethbridge