A Signet Crest Ring platinum onyx application engraved with the coat of arms of the Counts of Vilalva Portuguese 20th C. (1st half) broken onyx unmarked, pursuant to Decreto-Lei no. 120/2017, art. 2 (2) (c) Dimensões (altura x comprimento x largura) - 13 (16,7 mm) cm; Peso - 17,9 g.