OWL AND HORSESHOE (AKA) by Atterbury & Company (Pittsburgh-PA, Company Operated: 1850's-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.
image 1 of 2

Shape: Cups & Mugs
Contributor: Liz Roach

Shape: Cups & Mugs
Contributor: Gene Serbus

Shape: Cups & Mugs
Contributor: Gene Serbus

Shape: Cups & Mugs
Contributor: Liz Roach

Shape: Cups & Mugs
Contributor: Brad Gougeon