China 1897 10c on 9c grey-green surcharge variety on Dowager third printing, SG83aChina 1897 1mm Spacing Surcharge on Dowager Third Printing, SG83a A highly desirable and rare error printing variety of the 1897 Dowager Empress third printing, featuring the 10 cents on 9 candareens grey green with inverted surcharge. A fine mint example with fresh colour and with light original gum. The surcharge is boldly printed but strikingly inverted, a classic error that escaped postal inspection. A very scarce variety, especially in such fine