Reactionary pope best known for his unprecedented liberal reforms and the length of his papacy—32 years! Fountain pen signature, “Pius PP. IX,” on an off-white 8 x 2 slip, dated 1860, clipped from a larger document. Matted with a nice portrait of Pius and a small name plaque, to an overall size of 12 x 16. In fine condition, with some light vertical folds and mild show through from text on reverse. COA John Reznikoff/PSA/DNA and R&R COA.