Canada 30, 30v1890s Fifteen cent grey on vertical wove paper, perf 12, a nice mint block of four with post office fresh colour, the upper left stamp shows the seldom seen "Cracked Plate" variety clearly visible near centre of left margin (Position 65) being the most prominent variety found on this denomination, possessing unusually clean full original gum; a beautiful block, Fine to Very Fine, Lightly Hinged (Unitrade 30, 30v; catalogue value $3,580+)