"Creamotartrine" : a superior preparation to cream of tartar for use in the manufacture of high-class self-raising flour and baking powder : warranted to conform with the requirements of the Food and drugs act / Duckworth & Co.

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"Creamotartrine" : a superior preparation to cream of tartar for use in the manufacture of high-class self-raising flour and baking powder : warranted to conform with the requirements of the Food and drugs act / Duckworth & Co. Public Domain Mark. Source: Wellcome Collection.