1930-B年英国贸易银元站洋一圆银币。孟买铸币厂。底板中央呈枪灰色泽,边缘有浓郁的金色包浆。GREAT BRITAIN. Trade Dollar, 1930-B. Bombay Mint. PCGS MS-64 Gold Shield.KM-T5; Mars-BTD1; Prid-27. Mostly gunmetal gray central fields yield to a more golden-burnished nature near the peripheries of the radiant near Gem.