India paper
From about 1768 to 1875. a soft absorbent paper
imported from China for use in making proofs of
engravings. Since 1875 it has been made from
chemically processed hemp and rags. Today it is
generally a thin. opaque sheet made in a basis
weight of 20 pounds, bulking approximately 1,000
pages to the inch. (82 , 182 )