American Locomotive Company (Alco) PA1 #0778 of the New York New Haven and Hartford. This is one of the variations of the “McGinnis” scheme used on the PAs.
This 15oz mug is microwave safe, dishwasher safe, and made of durable, high-quality ceramic.
Capacity = 15 ounces
Height = 4 7/16 inches
Diameter = 3 3/8 inches
Width at handle = 5 inches