1930s Machine Age Diamond 5-Stone Ring niello Exceptional pair of matched black
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Description
1930s Machine Age Diamond 5 Stone Ring niello Exceptional pair of matched black Exceptional pair of matched black enamel ring dating from the late Victorian period Knoll and Pregizer were established in 1887 and quickly made a name for themselves making silver and paste jewellery with a few years added on either side absolutely inspired by the new aerodynamic designs found in aviation and the automotive industry