DUNCAN, GEORGE & SONS No. 90 TUMBLER (OMN) by Duncan, George & Sons/Pittsburgh-PA (Company Operated: 1874-1891), Unknown Date of Introduction

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Glass Display
Shape: Catalogue/Ads
Contributor: Sid Lethbridge, courtesy Tom Bredehoft, MAGWV
Glass Display View
Shape: Tumblers
Contributor: Pat Clark (1,2), Bob Harrigan, Brenda Diffendal 1/10/2026