Cubist cover of a heater

Bohemia, provenance Grandhotel Urban in Hradec Kralove, after 1918, dark stained oak wood, varnished metal sheet , corpus in the shape of tomb with sharply geometrically a wrapped profiling, whose open fields are covered with perforated plate in a parapet with a cubist composition of wooden tib and black lacquered ribs, size 96 x 188 x 39 cm