Manufacturers: Mayer China, McNicol China, Warwick China
User: White Castle Hamburgers
Date of McNicol mug: circa 1914 – 1931; date of McNicol plate: circa mid-to-late 1930s
Date of Mayer mugs: first mug, 1930s – early 1940s; second mug, 1951
Date of Warwick mug: circa 1920s

Mayer's first White Castle pattern, 1930s - early 1940s

Second Mayer White Castle pattern, 1951

Mayer backstamp

Date of McNicol mug: circa 1914 - 1931

Date of McNicol plate: circa mid-to-late 1930s

McNicol plate detail

Warwick mug, circa 1920s

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Notes: According to the White Castle website: "… in 1921 with $700 of borrowed money, the first White Castle opens in Wichita, Kansas, offering hamburgers at the unbelievable price of $.05 a piece." The company celebrated its 90th birthday on March 10, 2011 at more than 400 restaurants in 11 states.

White Castle claims to firsts: "First fast-food hamburger chain ever. First industrial-strength spatula. First mass-produced paper hat. First to sell a million hamburgers. First to sell a billion hamburgers. First frozen fast food for sale."

Mayer: White body with black logo of crest with building and banner. The banner reads, "A National Institution" and "Established In 1921." Under the banner it reads, "Buy 'em by the Sack."

McNicol: White body topmarked with multi-colored, exterior illustration of the White Castle venue; as shown below, the circa 1914-1931 topmark has three colors, while the circa 1930s topmark has only two colors.

Warwick: White body with multi-colored, exterior illustration of the White Castle venue; this circa 1920s White Castle logo varies slightly from the early McNicol China logo.

For related info:
White Castle 2 by Mayer China
White Castle 3 by Warwick China