UNITED STATES GLASS CO. No. .3863 (OMN) toy mug by United States Glass Company (Pittsburgh-PA, Company Operated: 1891-1962) , c1904 Introduced
NOTE: Sid Lethbridge 2020: catalog dates at 1907 but this piece was likely introduced earlier, c.1904
image 1 of 2

Shape: Child/Toy Size
Contributor: Liz Roach USGC 3863 Toy Mug from 1907 catalog

Shape: Child/Toy Size
Contributor: Andy Vaughn

Shape: Child/Toy Size
Contributor: Jim Thielen

Shape: Pattern Comparison
Contributor: Sid Lethbridge