The wall of serie i was designed by dieter waeckerlin in the mid -1950s, and made and expelled from idealheim ag basel, in switzerland. From the 1960s, the shelf system was also produced and sold by the german manufacturer behr international. the wall i. Series i configured from wall ladders, into which shelf floors with different depths, hanging cupboards and sideboards can be freely installed. A special feature, along with the essentials reduced to the essentials, is the beveled incision in the lower area of ​​the wall ladders, which is supposed to enable assembly at high skirting boards. I have official proof of authenticity such as vintage catalogs, designer records, or other literature sources and take full responsibility for any authenticity issues arising from misattribution