Manufacturer: McNicol China
User: National Carbon Company (Energizer)
Date of cup: 1941 – 1951 (usage of name limits to that time frame)
Notes: National Carbon was formed in 1886 to market the first battery for consumer use and later became known for Eveready and Energizer batteries and lighting, including carbon elements for the lights used to film movies. The core business became the Energizer company.
The name "National Carbon Company" was used from 1941 to 1951. The National Carbon Company Building in San Francisco, CA, was renovated in 1983 and is now (2007) an event facility named Giftcenter Pavilion. It is listed on the Register of Historic Places.
The McNicol China ROLOC bottomstamp denotes the tan clay body of the ware. Red and blue circular logo reading National Carbon Company around image of waves and sunburst. Matching red and blue stripes encircle the body.