In 1883, the Bremen-born tobacco merchant Adolf Lüderitz bought the anchorage at Angra Pequena in South West Africa and all land within an eight kilometer radius from Chief Josef Frederiks II for £100 in gold coin and 200 rifles through his agent, Heinrich Vogelsang. Vogelsang continued to purchase land from Frederiks, buying the coast from Angra Pequena to the Orange River with a width of 20 "geographical miles" (Frederiks had thought that the German mile was the same as the English mile, but in fact was five times as long). Lüderitz later bought the northern coast all the way up to the Kunene River.[6]