1686大头与1687、1688小头版不同之处就是头像略小一些,用英国资料《English and UK Coins 1066 to Date》直观一些,Obv1为1686大头版,Obv2为小头版。截图不太好,克朗重量大小基本一致,有原始资料注释,银(没有注明含量应被看成纯银)直径39.6,重量29.5~30.2.
引用一段esc的原话,This piece is not really quite as rare as is ...
This piece is not really quite as rare as is something thought, but it is a difficult coin to obtain in first class condition.
意译一下。
这钱币并不那么稀有,但在一般交易中下是很难买到的。