While color trade cards abound and the black and white versions are rarer, that is the exact opposite for billheads. As the popularity of trade cards died out, color became more popular on billheads. Also probably due to the decreasing cost of using color and the increasing importance o billheads as a means of advertising to companies. See below for some neat examples.
In 1843 the first modern version of baking powder was discovered and manufactured by Alfred Bird, a British chemist. In 1846, Justus Von Liebig in Germany experiments with yeast made from sodium bicarbonate and hydrochloric acid with explosive results. In 1885, Eben Horsford and George Wilson manufacture chemicals which eventually became the Rumford Chemical Works. Horsford formulated and patented Rumford Baking Powder, the first calcium phopshate baking powder. In 1889, William Wright and chemist George Rew developed a double-action baking powder marketed under the name Calumet Baking Powder. Below find some examples of baking powder billheads.
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