Zdeněk Hříbal (1952)

Zdeněk Hříbal with His Parents (1952)

Zdeněk Hříbal with His Wife Anna (1963)

Zdeněk Hříbal in a Duplicating Room at a University

Zdeněk Hříbal (2015)

Zdeněk Hříbal (2015)

Jindřich Leinweber (2015)

Jindřich Leinweber (2015)

Jindřich Leinweber (Skuteč Aviation Club, 1956)

Jindřich Leinweber (the 2nd from the right, Vodochody, 1975)

L-39 Landing without Undercarriage

Jindřich Leinweber (1962)

L-159 (after 1990)

Letňany (1963)

Jindřich Leinweber Constructing A Hovercraft (1960s)

Jindřich Leinweber's Hovercraft (1970s)

L-39

Jindřich Leinweber's Hovercraft (1970s)

Jindřich Leinweber

Jindřich Leinweber

L-159B

L-159B Experimental Flight. Jindřich Leinweber in the Middle, Wearind a Black Pullover

Jaroslav Čihař (photo from the 1970s)

trainee miners of the Dukla mine (1950s)

Young miners from the Dukla mine, 1950s, a postcard