Canada #593i, ii, iv (SG#700) 8c Ultramarine Queen Elizabeth II 1972-1978 Caricature Issue 3 Different Papers VF-80 NH

Three well centered and very fine NH singles of the 8c ultramarine Queen Elizabeth II stamp from the 1973-1977 Caricature Issue, each printed on a different paper. General OP-2 Ottawa tagging, 4 mm wide, of very weak strength (almost invisible to the naked eye) and glowing a bright yellow under ultraviolet light. The paper gives different reactions under UV light, and exhibits different physical characteristics as follows:

• One stamp is on smooth vertical wove paper, giving a dull fluorescent blue grey reaction on the front, and a dull fluorescent blue grey reaction on the back.
• One stamp is on a yellowish tinted vertical wove paper with horizontal ribbing on the face. Under UV light, the paper gives a dull fluorescent greyish reaction on the face. On the back, the paper gives a dull fluorescent greyish reaction, with very few low fluorescent fibres and a sparse concentration of brownish woodpulp fibres, visible in the paper.
• One stamp is on vertical wove paper with horizontal ribbing, and gives a dull fluorescent grey blue reaction on the front, with a sparse concentration of low fluorescent fibres, a very sparse concentration of medium fluorescent fibres and a sparse concentration of brownish woodpulp fibres, visible in the paper. On the back, the paper gives the same reaction, but instead of a very sparse concentration of medium fluorescent fibres being visible, it is a denser, sparse concentration. The tagging is azure in normal light.

Comb perforated 12.0 x 12.5. Unitrade values three VF-75 NH singles at $1. 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.