Barnum's American Museum Postal Cover
POSTAL COVER. Rare 1863 stamped and embossed advertising cover, known as a "cameo." Came with inserted advertising piece for "Professor W. Hutchings' SECRET of Rapid and Accurate Computation" with same embossed cameo (see attached). "Barnum's American Museum New York Open Day & Evening Combining The Most Unparalleled Collection of Curiosities In America With Select Performances In The Lecture Room Twice A Day of The Most Amusing & Moral Character" written in pencil in recent hand: "printed by J.H. Riley, NY."