Modernist fiberglass door with abstract art, Belgium 1960s

Translucent moulded fiberglass (polyester resin) door, 1960s. The pale yellow panel carries a raised pattern of rounded, pebble-like cells across its full surface, framing a central abstract motif in red, orange, deep blue and black, cast into the resin so it sits beneath a glossy top layer. Fitted with a round chrome knob and three hinges on the right edge. Condition: Very Good.