Keywords: Marsovo Pole Leningrad 949 1 m.jpg Saint Petersburg Russia Field of Mars Санкт-Пете бу г а сово поле Saint-Pétersbourg Champ de Mars http //www nlr ru/petersburg/spbpcards/index1 html author 1918-1941 PD-old Monuments in Saint Petersburg on postcards Historical images of Field of Mars Saint Petersburg Lev Rudnev Postcards of Russia |