bank paper

plural bank papers

1. uncountableusuallyA strong, thin writing paper commonly used for typewriting and correspondence.
2. archaicuncountableusuallybusinessBanknotes in circulation.
3. uncountableusuallybusinessPaper specifically designed for use in banknotes.

   Messrs., Crane and Co., of Dayton, Massachusetts, manufacturers of bank paper, have invented a very simple and efficient method of preserving the denomination of a bill from alteration.

   1847, editorial staff, “Method of Preserving the Denominations of a Bank Bill from being Altered”, in Scientific American, series 1, Volume 3, Issue 9, page 68