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Credit
The Pocket Instra. impercetible in a pocket, and prevents chills : warmth is life. Public Domain Mark. Source: Wellcome Collection.
Letter addressed to medical professionals promoting J.S. Barwick & Co.'s Instra, a "warmer" marketed to patients who suffer from symptoms of the Common Cold during the winter season. Includes name and address of recipient.
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Closed stores EPH287 |