PLAIN LEMONADE (OMN) bb by Bryce Brothers (Pittsburgh-PA, Company Operated: 1882-1891), c1891 Introduced
NOTE: Sid Lethbridge 2019: This mug appears in a c1891 Bryce Bros. catalogue as their Plain (OMN) lemonade. Again it could be earlier but at least we have the OMN and initial maker. This mug appears in the 1898 US Glass catalogue as their No. 2518 mug.
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Shape: Cups & Mugs
Contributor: David Trout

Shape: Catalogue/Ads
Contributor: Sid Lethbridge

Shape: Cups & Mugs
Contributor: David Trout