1919-A年坐洋20分银制样币。巴黎造币厂。试作样币。非常罕有。纯度0.680加盖于背面边缘铭文处的数值0.835上,亦印于背面底板左侧花圈旁。铸打深峻,迷人银灰色包浆,轻微湖绿底色,是为此种钱币中异常亮眼的一枚。Lec-217. Experimental trial strike. VERY RARE. Fineness of 0,680 stamped over 0,835 in peripheral legend on reverse, also stamped in left reverse field along wreath. Sharply struck with lovely metallic grey toning and faint aqua undertones, a stunning example of this interesting issue.PCGS SP-62 Secure Holder.