The internal sphere is rotated by hand inside the outer chrome ball shaped housing and is read through a lighted magnifying tube that sticks out from the case. This globular map is a very amazing auto accessory and was essentially the very first GPS. This Globular Map is in superb condition, it has all appearances of being NOS and shows no signs of having ever been mounted on a car. Comes complete with mounting bracket. If you have any questions please contact me.The item "Rare 1940 Marks Globular Road Map Antique Automobile Elkhart Indiana NOS NICE" is in sale since Friday, September 18, 2020. This item is in the category "Collectibles\Transportation\Automobilia\Other Automobilia". The seller is "lee5606" and is located in Granger, Indiana. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Viet nam, Uruguay.