Two Chinese silver wine labels

Two Chinese silver wine labels,

retailed by Wang Hing,

crescent form, mounted with a dragon, one pierced 'PORT', the other incised 'MADEIRA', plus an Indian silver-mounted boar's tusk wine label, incised 'MADEIRA', approx. weighable 0.7oz. (3)

Provenance: the Chinese labels with a collection label stating Sotheby's Lot 141, 18 December 1969.