American Locomotive Company (Alco) RSC-2 #977 of the Chicago Milwaukee St. Paul & Pacific.
This 11oz mug is microwave safe, dishwasher safe, and made of durable, high-quality ceramic.
Dimensions
Capacity = 11 ounces
Height = 3 3/4 inches
Diameter = 3 3/16 inches
Width at handle = 4 7/8 inches