D. AND P. (OMN) by Bryce, Walker & Company (Pittsburgh-PA, Company Operated: 1865-6/1882), Before 1880 Introduced
• AKA: D & P; D and P; Prism and Diamond Points; Prism with Diamond Points
NOTE: D&P likely stands for Diamond & Prism as pattern name.
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Shape: Catalogue/Ads
Contributor: Tom Bredehoft WVMOAG

Shape: Salts, open
Contributor: Winfred Huff