13/ They Say it’s Your Birthday. The wax formula in children’s color crayons was not far off from the formula used for wax candles. For a time in the 1920s and 30s American Crayon offered birthday candles through its Kroma division including one with reusable holders. This and other stories in my book Color Capital of the World available here https://blogs.uakron.edu/.../color-capital-of-the-world/
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