Brown's Bronchial Troches, Boston Mass., 10c Green (EP34). Stamp with rich color and detailed impression and attractively placed so denomination is clearly visible, large part of original silvering on reverse, mica with one or two small spots of laminating, Extremely Fine, an outstanding example of this issue and rare in this pristine condition, John I. Brown & Son was a Boston-based patent medicine manufacturer and marketer, Brown's Bronchial Troches was advertised as a tonic for the throat and breathing passages with endorsements from singers, teachers, ministers and others, the firm was later associated with the sale of the notorious "Mrs. Winslow's Soothing Syrup," a morphine and alcohol-based concoction that caused the deaths of hundreds of children through overdoses, ex Lilly, Ford and Litle

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