The armchairs shown are
Mid-Century Modern bentwood lounge chairs, specifically Model No. 24-23, designed by František Jirák. These iconic pieces were manufactured by the Czechoslovakian company Tatra Nábytok
Cc1950
Dimensions:
Height: 30.32 in (77 cm)Width: 24.81 in (63 cm)Depth: 31.5 in (80 cm)Seat Height: 16.15 in (41 cm