Pair of Ambrotypes of Mary and Moses Penrock, Members of the Kennett Square Underground Railroad Network, by Isaac Rehn, c. 1854.
Philadelphia: 1854. Ninth plate ambrotypes in a union case, measuring 2 ½ x 2 ⅛ inches (visible) in larger case. With the identification of (Isaac) Rehn, with his imprint and “Patented July 4 & 11, 1854” imprinted on the case. A fine pair. A striking pair of ambrotypes of Mary.....