Title: Humorous and sentimental songs as sung throughout the United States and Canada by Hamlin's Wizard Oil Concert Troupes, in their open air advertising concerts
Subjects: Advertising, Drugs, Patent medicines, Humorous songs, Nonprescription Drugs, Publicité, Médicaments, Spécialités pharmaceutiques, Chansons humoristiques
Places: United States, Canada, États-Unis