DOYLE & CO. No. 58 DOT (OMN) by Doyle and Company/Pittsburgh-PA (Company Operated: 1868-1891), mid 1880s Introduced

• AKA: Ferguson Inverted Thumbprint (Metz 1, p 202); Ferguson Inverted Thumbprint – Faceted Stem (Unitts 1, page 40)
NOTE: Ref Unitts p40 (top row, right)
NOTE: Large circular optic elements with just 6 full rows of optic.

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Glass Display
Shape: Research Update
Contributor: Sid Lethbridge
Glass Display View
Shape: Stemware
Contributor: Pat CLark, Walt Williams, Ellaina Miller, Matthew Cox
Glass Display View
Shape: Pattern Comparison
Contributor: Sid Lethbridge