unused Block of Four 1923 (Jan.) First printing, "ONE/cent" on 10c. dull blue, a block of four with one showing variety "cnet" for "cent" [53]; a few minor tone spots on reverse of some perfs and a few split and re-inforced perforations at right, otherwise fine mint. Scarce, only 207 examples possible. S.G. 72/72a, #300+