Proof 1901 printer's working sheet (320x200 mm.) officially annotated to indicate the cost price of printing inks per pound for each of the values, the sheet with single impressions of the ½d. and 1d., and two each of the 1½d., 2d., 2½d., 3d., 4d. and 1/- values, ink manuscript notes alongside one of each value with further quotations at lower-left for colours not shown on the sheet; some light creasing and soiling (mostly around the perimeter), otherwise fine