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