越南。1905年1/600圆试作样币。锌製。非常罕见。只有五枚获PCGS评级。铸打深峻,深色包浆。PCGS SP-62 Secure Holder.VIETNAM. Tonkin. 1/600 Piastre Pattern Essai, 1905. PCGS SP-62 Secure Holder.KM-E1; Lec-2; Gad-1. Struck in Zinc. VERY RARE, a total of only 5 pieces have been certified by PCGS. Sharply struck and darkly toned.