Canada #341p W1C 5c Ultramarine Queen Elizabeth II, 1954-1962 Wilding Issue, A VFNH Example of the Scarce 1-Bar Tag Error, Perf. 12

A very fine NH example of the 5c ultramarine Queen Elizabeth II stamp from the 1954-1962 Wilding Issue, showing the scarce 1-bar tagging error, in which a single 8 mm band appears in the centre, rather than two 4 mm bands at the sides. Printed on smooth horizontal DF paper, with cream gum that has a semi-gloss sheen. Perf. 12. 

Unitrade does not list this error. Rose lists it at $250 for a used stamp, but does not price a mint example. So, the value should be higher than $250. The stamp offered here grades VF-75 as follows:

Centering/margins: 45/70

Paper freshness: 5/5

Colour: 5/5

Impression: 5/5

Absence of visible paper flaws: 5/5

Perforations: 10/10