Catalog of the Library of Giuseppe Renato Imperiali

Page VIII

original: "$2^o$ H 67"; the notation $2^o$ (secundo) refers to a folio, the largest standard size for a book or manuscript page.

Affixed to the center of this weathered, light brown leaf is a physical artifact:

A large, vertical rectangular patch of dark, coarse-textured fabric, likely made of wool or felt, is pasted onto the center of the page. The surrounding paper shows significant signs of age and heavy use, including multiple horizontal creases, staining, and foxing foxing: reddish-brown spots on paper caused by mold or metallic impurities.

This page serves as a mounting sheet for a material sample. In the context of 17th or 18th-century "sample books," such patches allowed merchants or scientists to document the tactile qualities of various textiles alongside their archival numbers.