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A colored illustration of a variety of weather-related warning flags. It is an advertisement for Ayer's Cherry Pectoral, sold by Dr. Ayers in Lowell, Massachusetts.
Dr. J. C. Ayer & Co., "Ayer's Cherry Pectoral / Cures Colds & Coughs Caused by Changes in the Weather" (Front)
Trade Cards - Chromolithographs
Dr. J.C. Ayer & Co.
North America -- United States -- Massachusetts -- Lowell
The San Diego State University Library, Special Collections and University Archives
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