Large shelf String of the ' 60s, solid oak shelves

Large modular shelves String: 3 amounts (102x18cm) and 6 shelves (17x54cm) solid oak. Shelving system invented by the Swedish architect Nisse Strinning in 1949. The scales are original; the shelves, old, beautiful solid oak moulded, are they not original, they have been adapted. Traces black above and below one of the shelves. Some slight traces of corrosion on the scales, mainly on the 6 fixing points (photos). All in Nice condition, very rare in this height (ladders to 19 bars). Note that two shelves can follow each other horizontally, they must be staggered. Height: 102 cm Width: 106 cm Depth: 18 cm Shelves thickness: 18 mm Bar shelf every 5 cm Total weight: 10 kg