Vintage 1970s Cado Design Sterling Silver Brutalist Modernist Ring 925 Sheffield Hallmarked

ABOUT: Cado Designs:The company was registered at the Sheffield Assay Office on August 18, 1964. They had workshops at Howard Works and 151 Arundel Street in Sheffield, along with a registered office in London. Known for producing modernist and brutalist-style jewelry, often featuring cast silver with black resin or abstract designs. The company was active throughout the late 1960s, with pieces often hallmarked in Sheffield between 1965 and 1973. They went into liquidation around 1980.