A meeting between F.W. Winterbotham, head of the Air Section in British Secret Intelligence Service (MI6) and SIS agent Baron de Ropp, right, on Baltic shore in East Prussia, 1936 (foto Henry Makov)

A meeting between F.W. Winterbotham, head of the Air Section in British Secret Intelligence Service (MI6) and SIS agent Baron de Ropp, right, on Baltic shore in East Prussia, 1936 (foto Henry Makov)