Canada #587vi (SG#694) 2c Green Laurier 1972-1978 Caricature Issue HF Paper Type 4 Blank UR F-70 NH

A fine NH blank upper right field stock block of the 2c green Sir Wilfred Laurier stamp from the 1973-1977 Caricature Issue. Printed on vertical wove paper showing no ribbing on either the front, or the back. The paper gives a high fluorescent bluish white reaction under ultraviolet light on the face and the back, with a low density concentration of medium fluorescent fibres and a sparse concentration of high fluorescent fibres visible in the paper. Together, these give it an overall appearance of being HF. 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. Smooth, creamy PVA gum with a satin sheen. Unitrade lists #587vi as being on HF paper, but I have found at least 4 varieties of fluorescence and tagging which closely fits this classification. This is one of those 4 variations. Unitrade values a F-65 NH plate block at $2.00, and does not value field stock blocks. However, field stock blocks for this issue are generally scarcer than the plate blocks. 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.