----------------------------Original message---------------------------- I am trying to date an original historical map purchased in the Netherlands. The title is: Planglorium Terrestre ou Mappe-Monde a Amsterdam chez Holtrop It is the usual double hemisphere on a stereographic projection. Australia is incomplete (western half only) and the entire Pacific Northwest and Alaska are missing. In a little celestial diagram at the bottom, there are the words TGebouw Van and TGroot Heelal Some other text is illegible (too small). Any guesses as to the date? Thanks, Keith Clarke