Canada #587iii (SG#694) 2c Green Laurier 1972-1978 Caricature Issue DF Paper Type 8 Block With Comb Perf. Join F-70 NH

A fine NH block of 4 of the 2c green Sir Wilfred Laurier stamp from the 1973-1977 Caricature Issue, showing 2 perforating combs out of alignment. Printed on vertical wove paper showing no ribbing on either the front, or the back. The paper gives a dull fluorescent greyish white reaction under ultraviolet light on the face and back, with a low density concentration of low fluorescent fibres, and a very sparse concentration of medium fluorescent fibres visible in the paper. 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, showing the meeting of two perforating comb strikes half way up the top stamps, where the two strikes are slightly out of alignment with one another. This illustrates nicely the difficulties that were encountered by the CBN with this issue, this being their first attempt at comb perforating. Smooth, creamy PVA gum with a satin sheen. Unitrade lists #587iii as being on DF paper, but I have found at least 19 varieties of fluorescence and tagging which closely fits this classification. This is one of those 19 variations. Unitrade values a F-65 NH block, without the variety at $0.70. The block offered here grades 70 as follows: Margins/centering: 45/70 Paper freshness: 5/5 Colour: 5/5 Impression: 5/5 Absence of visible paper flaws: 5/5 Perforations: 5/10 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.