Answer:
Folie-size books were stored in deep cases. The top surface was tilted and adjustable for the accomodation of folios. Folio stands typically refer to adjustable stands or racks designed to hold and display folios, which are large sheets of paper used for art, music, or other purposes. The stands are often used by artists, musicians, or enthusiasts who need a convenient and ergonomic way to display and access folios for reference or performance.