1980年香港1毫背面试打样币,UNC,极之罕见,连一枚经PCGS评级之正常流通币作参考,售后不接受退货。Hong Kong,copper nickel 10 cents, 1980, an uniface die trial, only the reverse was struck, uncirculated, very rare sample of this type, together with a PCGS graded coin for comparison. Sold as is, no return