民国三十一年半圆镍币。30枚。 富有学术趣味的一组,可见至少六种摸具配对,高评分。数枚可见模具老化导致的大小裂痕。适合追求性价比的藏家作研究之用。 CHINA. Study Group of Copper-Nickel 50 Cents (30 Pieces), Year 31 (1942). Average Grade: CHOICE UNCIRCULATED. KM-Y-362. This wholesome gathering is academically interesting consisting of high-grade examples with at least six different die pairings. Several show progression of degradation of the dies offering diagnostic characteristics such as large and small cracks. A great group for the academic collector on a budget.