NOVATO, Calif., Nov. 16, 2016 /PRNewswire/ -- Author/Adventurer, Robert Stupack of Novato, announced today that the artifact known as the Great Poste of Sir Francis Drake has been recovered in Greenbrae, California. Photo - http://photos.prnewswire.com/prnh/20161115/439601 Photo - http://photos.prnewswire.com/prnh/20161115/439602 "The World Encompassed," a diary of Drake's 1577-1581 circumnavigation, states that in 1579, Drake landed along today's San Quentin Peninsula, claimed the territory for Queen Elizabeth I of England and named the land, Nova Albion. The diary also states that before his departure, Drake left a small plaque known as the Plate of Brass "nailed upon a fair great poste" to commemorate his visit. The Great Poste bears hand-carved Roman numerals with the same date, June 17, 1579 as the Plate of Brass. More importantly, it has hand-carved Alchemy symbols that provide the details of the processes Drake used to make the Plate of Brass and to smelt huge quantities of gold and silver he took from South America. Mr. Stupack found the Great Poste less than one hundred feet away from where the Plate of Brass was discovered by Beryl Shinn in 1936. In the same vicinity, Mr. Stupack also recovered a small smelter and the set of "missing tools" used to form the inscription on the Plate. After its discovery in 1936, Beryl Shinn turned the Plate of Brass over to Dr. Herbert Bolton of UC Berkeley who had it examined by the leading scientists of the day. In 1938 those scientists declared it to be "the true artifact" left behind by Drake.