拍品描述： 民国十三年中华铜币二十文样币。 CHINA. Copper-Zinc 20 Cash Pattern, Year 13 (1924). Kalgan Mint. PCGS SPECIMEN-64. 饶有趣味的铜锌合金版，美艳动人的罕品。寻常版别仅使用铜打铸。PCGS评鉴中仅有两枚，此枚更高分。因含有锌，此枚呈深灰色泽，仅有零星由铜带来的金棕色。光泽耀眼，前后晃动可见车轮光流转。追求品质的铜币或样币资深藏家定会关注。 CL-MG.138A; cf. KM-Y-312 (for regular issue); Duan-2178. A stunning and extremely enticing RARITY , this interestingly alloyed pattern issue, featuring a copper-zinc composition, rather than the typical copper-only striking , stands as the finer of just two seen at PCGS. Owing to the degree of zinc present, this enchanting specimen displays a deep steely gray hue and only scattered tan hints from the copper. Meanwhile, the vibrant brilliance is universal, and cartwheels rather tantalizingly as one cradles it back and forth. A majestic opportunity for the advanced collector within the cash series or for those who seek only the finest with respect to curiosities such as patterns and trial pieces.