Drentea bookcase/wallsystem

Rare standing bookcase/wallsystem from the 1960's made by the Dutch firm Drentea. The system consist of 5 shelves, the shelves are marked with a sticker: Drentea Room Steel. The condition is fair given it's age, the shelves has traces of use ( scratches, spots of rust), see detailed pictures. The dimension is 75 cm L/ 19,5 cm W/ 152,5 cm H.