Minimalist modular wall shelves vintage year 1950-1960

Minimalist modular teak wall shelves. Anonymous modernist work around 1950/1960. Each module is contained 4 teak boards and 2 glass boards. System for adjusting the height of the shelves by 5 cm. The frame is anchored to the wall by the upper part and rests on 2 adjustable pads in solid brass. Some boards have a more marked wear and may therefore not be totally straight (v.photos) The surfaces were cleaned, sanded and reprocessed by restaurateur. H 193 cm X w 65 cm X d 28 cm. Boards 59 cm X 24.5 cm. Two modules on sale.