OWL AND HORSESHOE (AKA) by Atterbury & Company/Pittsburgh-PA (Company Operated: 1850s-1900), c1880s Introduced
Possibly Atterbury, the handles match with the Eastlake mug and found in several colors.
NOTE: Ref: Pattern Glass Mugs, by Mordock & Adams, pg 18.
Shape:Cups & Mugs
Contributor: Gene Serbus (1,2), Liz Roach (3,4)