Born in Berlin, Germany on 9 August 1885 to Georg Lachmann, a brass foundry owner, and Hedwig Sara Fannij Eltzbacher.
According to his son Gerhard (George Mosse), Lachmann-Mosse spent the night in the building debating Rosa Luxemburg and managed to get the next day's Tageblatt printed and delivered.
Mendelsohn's corner treatment, using of strips and sculpted elements in the fenestration gave the building a streamlined, futuristic form and rendered it iconic.
Lachmann-Mosse, however, received in Paris an invitation from Hermann Göring to continue as the Berliner Tageblatt business manager with the protective status of an Honorary Aryan (Ehrenarier).
His son Gerhard (George Mosse) suspects that Göring's motive was to wrest control of the network of foreign press agencies and offices that had remained in the family's possession.