Electro-Motive Division F7A #47 (former SP unit #6309) of the L&NW as it appeared circa 1983.
This 10oz tumbler is dishwasher safe and made of durable stainless steel. Double-wall, air-gap construction means it will maintain the temperature of its contents for much longer than a regular tumbler.
Capacity = 10 ounces
Height = 4 5/8 inches
Diameter = 3 3/8 inches