Canada #363 25c Deep Vermilion Chemical Industry, 1954-67 Wilding and Cameo Issue, a FNH Upper Right Plate 1 Block on Dull Fluorescent Grey Violet Smooth Paper, Perf. 11.85 x 11.95

A fine NH example of the 25c deep vermilion chemical industry stamp from the 1954-67 Wilding and Cameo official Issues, in a plate 1 upper right (UR) block of 4. Printed on smooth vertical wove paper and giving a dull fluorescent grey violet reaction under ultraviolet light. Perf. 11.85 x 11.95. Slightly streaky cream gum with a semi-gloss sheen and a gum disturbance on the upper left stamp. Unitrade values a F-75 LH block at $3.40. The block offered here grades 70 as follows:

Centering/margins: 40/70

Paper freshness: 5/5

Colour: 5/5

Impression: 5/5

Absence of visible paper flaws: 5/5

Perforations: 10/10