This is a wonderful set of 2 bright orange, stacking mugs from Fire King by Anchor Hocking. These mugs are durable, sturdy, every-day mugs made of opaque white glass colored on the outside in a gradient of bright orange. They feature "D" shaped handles and a stable shape. One mug is marked 51 the other 55.
Material: Opaque white glass
Markings: Anchor Hocking Ware, Fire King, Made in U.S.A
Measures: 3 3/8" (8.57 cm) H x 3 3/4" (9.53 cm) W Opening: 3" (7.62 cm)
Condition: Excellent vintage condition. No chips or cracks. Little to no wear.
Date: Estimated to the late 1960's