An exceptionally rare 1862 Nevada Territory receipt issued to Samuel Clemens (better known as author Mark Twain) for his work as a legislative reporter sold for $23,125, and a pair of 1871 documents appointing the melter and refiner to the Carson City, Nevada Mint, one of them signed by President Ulysses S. Grant, rang up $15,625 in a huge, four-day Desert Riches Auction held January 31st thru February 3rd by Holabird Western Americana Collections, LLC.