c. 1780 Italian paper

Evidence

"The resulting ink was a rich, dark rusty-red brown-black color that aggressively bit into c. 1780 Italian paper and could not be washed off."

Remarks

Manuscripts are loose folios stored in leather wrappers. Some papers are described as brown, and technical analysis of paper structure (watermarks) was noted as a method used by other scholars like Brockett (p. 5, 12).