Aspects of the topic Staunton pattern are discussed in the following places at Britannica.
Assorted References
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chess pieces (in chess (game): Set design)
The standard for modern sets was established about 1835 with a simple design by an Englishman, Nathaniel Cook. After it was patented in 1849, the design was endorsed by Howard Staunton, then the world’s best player; because of Staunton’s extensive promotion, it subsequently became known as the Staunton pattern. Only sets based on the Staunton design are allowed in international competition...
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promotion by Staunton (in Howard Staunton (British chess player))
...tournament chess piece design was originated about 1835 and patented in 1849 by Nathaniel Cook. Following Staunton’s endorsement and extensive promotion of the design, it became known as the Staunton pattern.