This large double-sided factory clock was produced by Pragotron in former Czechoslovakia during the 1950s. The piece features a two brown bakelite frames,an aluminium dials, a clear glass covers and an iron contruction. Former slave clock has been converted into a battery-powered clockworks and require two AA-battery. The piece weighs 7 kg. Measures: Diameter: 49 cm. Total height: 78 cm. This piece has an attribution mark, I am sure that it is completely authentic and take full responsibility for any authenticity issues arising from misattribution