Avraam Shukhman 1915 Lev Belotserkovski with his colleagues ~1930 Lev Belotserkovski ~1930 Sophia Belotserkovskaya with her mother ~1930 Grigori Shukhman 1934 Sophia Belotserkovskaya 1946 Sophia Belotserkovskaya with her pupils 1950 Sophia Belotserkovskaya with her parents ~1960 Lev Belotserkovski and Rachil Belotserkovskaya 1962 Sophia Belotserkovskaya 2003