UNIQUE (OMN) adam by Adams & Company/Pittsburgh-PA (Company Operated: 1861-1891), c1885 Introduced
• AKA:
Diamond and Rectangle Panels
NOTE: Sid Lethbridge - Based on its appearance in Butler Bros. assortments we can attribute it to Adams & Co. c1885. The likely OMN is Unique.
NOTE: Paul Kirk Jr 2017 - shown in a ca. 1886 Pitkin & Brooks catalog labeled "No. 0 Unique"