The Royal System is an award-winning classic mid-century Danish modern system of shelving units consisting of a variety of wall-hung shelves, desks, and other things designed by Poul Cadovius.. See: http://www.pamono.com/designers/poul-cadovius for information and product photos.
After many decades off the market, Royal System is now being produced again and marketed at stratospheric prices. An 8-shelf unit is currently advertised on line for 950 Euro or about $1,050.
But you can have some of the 1960's originals at a bargain price: a used set of 14 walnut veneer shelves and 5 walnut-stained vertical supports plus chrome mounting hardware. They don't go well in my 1850's home but they might look and function wonderfully in yours.