I am not sure. Two suggestions for further research:
A. The latest Newfoundland Specialized Stamp Catalogue (NSSC) is a worthy investment and has details about this--granular detail and it the NSSC is updated as new info comes to light
B. Ed Wener is the top expert on Newfoundland forgeries. Great guy though I never met him; lived and died in New Zealand--trivial tangent. You can find it here:
http://www.jacestamps.com/e-books/N...orgeries.pdfScroll to the bottom page 33 and he has a paragraph on this stamp. One of his tells of a forgery is watery and under inked areas. And the shape of the H.
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