paper
Paper, i + 100 + i; 1-25⁴, gatherings signed 1-24, upper left first recto; 1-100, contemporary foliation with arabic numerals in ink, upper right recto.
Parchment, contemporary or slightly later. Writing on the inside of the parchment cover sheet, likely a discarded document, visible through the outside of the front and back covers.
Written in Italy, ca. 1680 (Zacour-Hirsch).