LSE4093477 Map of an Island in the Tresor (Pirates?) , 1754. Map drawn by Robert Louis Stevenson (1850-1894) for his book ???\'Ile au tresor??(Treasure Island), published in 1883. The names of Bones and Walrus at the bottom of the map are those of characters in the book. by Stevenson, Robert Louis (1850-1894); Private Collection; (add.info.: Map of an Island in the Tresor (Pirates?) , 1754. Map drawn by Robert Louis Stevenson (1850-1894) for his book ???\'Ile au tresor??(Treasure Island), published in 1883. The names of Bones and Walrus at the bottom of the map are those of characters in the book.); Photo by Leonard de Selva.