Crane & Co. has been manufacturing the finest cotton papers since 1801. Well known for Stationery and Currency papers, base papers for the Museo range of digital fine art papers are just another example of the finest papers from the craftsmen at Crane.
Museo Artist Cards are manufactured to archival standards (Library of Congress, ISO) with all products being 100% cotton, internally buffered (to prevent long term environmental acidification), and containing no optical brighteners (which are known to fade over time). http://www.museofineart.com/aboutmuseo.aspx