These are loose leaf ledger pages from Rajasthan, NW India. The paper is hand burnished sunn hemp and the pages contain accounts records dating back to the 19th century. Pages are long and narrow and have three holes at one end from the original string binding.
The leger sheets are mostly filled with writing (in ink), sometimes with a stamp on the top of the sheet. See photograph. For ledger paper mostly clear of writing see the product SUNN HEMP Blank Ledger.
You can buy just one sheet of any one paper but overall you must buy a minimum of 10 sheets selected from any of the papers in this category.