Keywords: Germanskaya technika.jpg Жу нал Ге манская техника на обложке - Дом техники в Калининг аде German technology magazine with the House of technology in Kaliningrad on the front page German technology Ге манская техника magazine issued on 25 April 1925 author PD-Russia-2008 PD-Russia-2008 House of technology Kaliningrad |