Canada #589 (SG#696) 4c Black King 1972-1978 Caricature Issue LF Paper Type 3 and 13 VF-80 NH

Two well centered and very fine NH singles of the 4c black William Lyon Mackenzie King stamp from the 1973-1977 Caricature Issue, each printed on a different paper. General OP-2 Ottawa tagging, 4 mm wide, of light strength (barely visible to the naked eye), and moderate strength (clearly visible to the naked eye, but not dark) and glowing a bright yellow under ultraviolet light. The paper gives different reactions under UV light as follows:

• Dull fluorescent bluish white, with a low density concentration of low fluorescent fibres and a very sparse concentration of medium fluorescent fibres visible in the paper. Tagging is of moderate strength.
• Dull fluorescent grey blue, with a low density concentration of low fluorescent fibres, a sparse concentration of medium fluorescent fibres, a very sparse concentration of high fluorescent fibres and very few brownish woodpulp fibres visible in the paper. Tagging is of light strength.

Comb perforated 12.0 x 12.5. Unitrade values two VF-75 NH singles blocks at $0.50. The stamps offered here grade 80 as follows:

Margins/centering: 50/70

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.