1897-A年坐洋一分样币。白铜铸造,金属成分为铜、镍、锌合金。无"ESSAI"字样,未获收录,稀罕。深打,轻微包浆,十分赏心悦目。FRENCH INDO-CHINA. Copper-Nickel-Zinc Cent Pattern, 1897-A. Paris Mint. PCGS SP-63 Gold Shield。KM-E6; Gad-7; Lec-51a. Struck as a Pattern in Maillechort (copper-nickel-zinc). Without "ESSAI" Unlisted mintage and assuredly RARE. Sharply struck, lightly toned and quite appealing。