Canada #591xx (SG#698) 6c Scarlet Pearson 1972-1978 Caricature Issue MF Paper Type 7 Blank UR F-70 NH
A fine NH blank upper right warning block of the 6c scarlet precancelled Lester Pearson stamp from the 1973-1977 Caricature Issue, showing the junction of two perforating comb strikes half way up the top stamps. Printed on vertical wove paper showing no ribbing on either the front or back, and with a burnished smooth texture on the printed surface. The paper gives a low fluorescent grey blue reaction under ultraviolet light on the face and back, with a low density concentration of low fluorescent fibres, and a sparse concentration of medium fluorescent fibres visible in the paper on both sides. General OP-2 Ottawa tagging, 4 mm wide, of moderate strength (clearly visible to the naked eye, but not dark), and glowing a bright yellow under ultraviolet light. Comb perforated 12.0 x 12.5, with the selvage fully perforated through in the vertical direction, but with the horizontal perforations stopping one perforation short of the edge of the right selvage tab. The intersection of two perforating comb strikes is evidenced by a slight shift to the left of the vertical perforations in the upper half of the top stamps in the block. Smooth, creamy PVA gum with a satin sheen. Unitrade lists 591xx as MF paper, but I have found 6 different variations of tagging and fluorescence that qualify as MF overall. This is one of those variations. Unitrade does not value corner blocks of the precancels, but values four F-65 NH singles at $0.50. The block offered here grades 70 as follows: Margins/centering: 40/70 Paper freshness: 5/5 Colour: 5/5 Impression: 5/5 Absence of visible paper flaws: 5/5 Perforations: 10/10 Note: the above scan is a stock photo as are all my scans for material after 1952.The item (s) you will receive has (have) been carefully checked to adhere to the above grading standards, so while it (they) may not be exactly the same, it (they) will be of the same quality. Also, I do not provide back scans of NH stamps or blocks after 1952 unless they are required to illustrate some attribute of the paper or gum.