1. Ostindien mit den Inseln Maps University Of Minnesota Public content 1850. Justus Perthes (Firm : Gotha, Germany) and Stieler, Adolf, 1775-1836. Cartographic Details: Scale approximately 1:31,700,000. Relief shown by hachures. Prime meridians: Greenwich and Ferro. Shows colonial possessions.... Justus Perthes; Gotha.