I have a collection of maps for use in design or for navigational training or assistance. Hawaiian islands, Martha's Vineyard, East point to Sand Heads, Province of BC, Matagami lake etc. And a large McNally and rand map of the cosmopolitan world. All very large . Bigger than poster size. Each one is different. Please do not ask for sizes as unrolling them will cause damage to pristine items. Prices depend on map and the more you want the better the deal. Also have blue prints of a sailboat that would look great on a wall. Very large working blueprints.