ROCHESTER TUMBLER CO. No. 40 (OMN) by Rochester Tumbler Company/Rochester-PA (Company Operated: 1872-1901), c1886 introduced
NOTE 2023 - Shown in listing of three tumblers. No. 39 (rib optic); No. 40 (dot optic); No. 41 (diamond optic) and No. 42 (combination diamond and rib optic).

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Shape:Tumblers
Contributor: Jo Durrance - OMN 40 n the right. 3.5H, base 2.5D, top 3.25D. The one on the left is Rochester OMN 42.

Shape:Catalogue/Ads
Contributor: Sid Lethbridge - Butler Bros. 85th Trip catalogue which dates to 1886.

Shape:Research Update
Contributor: Sid Lethbridge

Shape:Research Update
Contributor: Sid Lethbridge