Vintage map ISTANBUL TURKEY published by Shell Oil Company employee information

Vintage map ISTANBUL TURKEY published by the Shell Oil Company employee information? You are bidding on a vintage map of Istanbul, Turkey. The map was published by “The Shell Company of Turkey, Ltd.”, measures 26 ½ x 19” and has some bluish water stains in two corners and a little on edges. The map has a second side with cultural and important information for tourists apparently more for Shell's employees. It lists banks, consulates, exchange rates, museums , hotels on both the Asian and European shores and on the Islands. Also tea rooms, mosques, post offices, airlines, buses, ferries, trains, etc. Thanks for looking and good luck in bidding.