1890-H & 1891年香港贰毫。 1) 喜敦造币厰。清洗致币面有些许髮丝痕。2) 伦敦造币厰。反面有黑色沉积物和轻微髮丝痕。 HONG KONG. Pair of 20 Cents (2 Pieces), 1890-H & 1891. Victoria. Both NGC Certified. 1) 1890-H. NGC EF Details--Cleaned. Heaton Mint. KM-7; Mars-C28. Surface hairlines from an old cleaning.2) 1891. NGC AU Details--Cleaned. London Mint. KM-7; Mars-C8. Faint hairlines with black residue on reverse.