Preferred label: 

The skin of the young pig which may be either tanned, tawed or turned into parchment.

Carter ABC

Carter, John, 2004. ABC for Book Collectors, 8th ed. ed. Oak Knoll Press ; British Library, New Castle, DE : London.

Additional reference: 
p. 168

Reed (1972)

Reed, R., 1972. Ancient Skins, Parchments and Leathers, London: Seminar Press.

Broader concept: 
Top concept: 
Getty AAT: