作者以实物为基础，考察了有代表性的主要银币的制式变迁，探求其发行背景，但未作钱谱式的细微区分，而是从钱币学和货币史结合的角度展开论述的。
His review is made in the angle of numismatics in combination with currency history , instead of on the specific differences of coins .
钱币史