Steve123..interesting cancel..i do not have any such mark in my Newfoundland collection.
You might want to go to the link below, which is BNAPS's study group for Newfoundland...
http://www.bnaps.org/hhl/n-nfie.htm...Look for the stamp PDF below
FC&MM Study Group,Newsletter 73.pdfPlease
DO NOT send any emails to Norris Dyer...He unfortunately passed away suddenly..He will be extremely missed, and as far as I know they have no one to fill the spot...Please be patient and respect the situation.
I will try to find out for you, but I believe it may be a one off quartered cork cancel, that may have been designed and used by a local post office...Just my opinion.
Here is a link with your stamp..go trough them all to see if you can see one with your cancel on it.
http://www.canadarevenuestamps.com/...e+stampRobert