According to today's (Monday, November 14) NEWSDAY, "During the Revolutionary War, Gen. George Washington took a keen interest in the tiniest details of how his spies operated, right down to the formula for invisible ink." NEWSDAY continues, "The letter was written in 1779 by Washington to his chief of intelligence, Gen. Benjamin Tallmadge, and focuses -- without naming him -- on the man who historians have called the Revolution's most important spy, Robert Townsend of (the Hamlet of) Oyster Bay (in the Town of Oyster Bay, then Queens County and now Nassau County). His code name was Culper Jr., and Washington, at his own request, never learned his true identity." This historically important letter being auctioned in Manhattan tomorrow by Christie's. To read the complete NEWSDAY article, "Washington's letter goes on auction block", please go to: <http://www.newsday.com/news/local/longisland/ny-lispy134512321nov14,0,2676788 .story> I hope this information is useful or, at least, interesting. Regards, Walter Greenspan