Lev and his father, 1933
Lev and his parents, 1946
Lev at work, Regional House of Scientific and Technical Propaganda
Lev and his father, 1933
Lev and his parents, 1946
Lev at work, Regional House of Scientific and Technical Propaganda
Lecture
Lev with Alex, 1972
Lev with Gina, 1978
Lev at work
Lev and Henry Kozachkov, the last picture, 8/29/1987
Leo Kozachkov's MIT PhD Defense - dedication to Prof. Lev Kozachkov, 2022