Queensland SG20s 1860 Registered Stamp Block opt Specimen fine M/M

1860-61 Registered (6d) Orange-yellow rough perf 14 block of four handstamped SPECIMEN diagonally. Lightly mounted with even gum toning. Attractive and Scarce. Ex Besaucon. Ex Alan Holyoake RDP FRPSL Grand Prix Collection of British and International Registered Mail