Initially the company was based at Heiligegeiststraße 13. Around [[1856]] Blanckertz acquired the property at Fliederstraße 4 in Friedrichshain. Around [[1872]] the property at Gollnowstraße 11 was added and, from 1889, the property at Georgenkirchstraße 44. | Initially the company was based at Heiligegeiststraße 13. Around [[1856]] Blanckertz acquired the property at Fliederstraße 4 in Friedrichshain. Around [[1872]] the property at Gollnowstraße 11 was added and, from 1889, the property at Georgenkirchstraße 44. |