Black Onyx 9k Gold Signet Ring Vintage English 1975 Hallmark.



Fantastic blank black onyx seal to this 9ct yellow gold signet ring with English gold hallmark. The gold mark can be found to the inside of the band, the assay office is Birmingham with the date letter for 1975. There is also a makers mark 'A&Co'. The stone is blank & could be inscribed with a family crest or initials see pictures.
Size UK M+, US 6.5 or internal diameter 1.7 cm or 0.7 inches.
Size of head 1.2 x 0.8 cm or 0.5 x 0.3 inches.
Weight 3.5 grams or 2.1 penny weight.

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