Adjustable shelves metal twisted golden 60

Shelves in the 1960s to fix to the wall. They are modular: 2 shelf separated from 3 tablets each (or 4 and 2 shelves) and 48.5 cms wide, or 3 related shelves 2 shelves each (all measuring 143.5 cms wide). Amounts are in wire gold with traces of oxidation, an amount some defects of welding (but it still supports tablets with weight). The tablets are brown lacquered metal in good condition (a Tablet has a slight depression).