Zdeněk Zerzáň during his military service

Zdeněk Zerzáň in Vřesová studánka

Zdeněk Zerzáň with a key for Mexico City that he was given by Věra Čáslavská

Zdeněk Zerzáň in Kouty nad Desnou in 1956

Zdeněk Zerzáň in Kouty nad Desnou

Zdeněk Zerzáň in Moscow in 1956

Zdeněk Zerzáň in Poland in 1959

Zdeněk Zerzáň in 2021

Photo of Zdeněk Zerzáň

Zdeněk Zerzáň in 2022

Zdeněk Zerzáň in 2022

Zdeněk Zerzáň in 2022

Zdeněk Zerzáň in 2022

Otakar Mach in 2019

Otakar Mach with his mother in Poděbrady in 1937

Otakar Mach tells his life story to children as part of the Stories of Our Neighbors project

Otakar Mach with students during the Stories of Our Neighbors project

Otakar Mach during the interview with students

Otakar Mach in 2021

Otakar Mach in 2021

Wedding photo of the witness's parents, Prague 1929

Cardboard factory of Otakar Mach Sr. after nationalization, before demolition, ca. 1950

Viral particles after centrifugation, ca. 1966

Cardboard factory that belonged to the witness's father - Hrabačov, 1934

A grain warehouse was built on the site of a cardboard factory after nationalisation, Hrabačov, ca. 2012