KEYSTONE (OMN) adam
• AKA:
Magnet and Grape with Stippled Leaves
• MAKER:
Adams & Company/Pittsburgh-PA (Company Operated: 1861-1891), Introduced: c1872 Introduced
• NOTE: Keystone appears in the c1872 Adams & Co. catalog.
NOTE: Sid Lethbriidge: ...goblet (aka) Magnet & Stippled Grape is documented (not attributed) to Adams & Co. as their Keystone pattern based on its appearance in a early 1870s catalog. The maker of the Magnet & Frosted Grape pattern is unknown but has been speculated as Boston & Sandwich. See the side by side comparison below that shows the differences between the two patterns.
• MOTIFS: Diamonds, Arches/Crescents, Grapes