Not sure if the Royal Canadian Mint uses the exact same process as the US Mint, but this looks like a "struck through grease" coin. I'm not sure there is going to be much of a premium on it if any, sorry to say.
My hobby: collecting real money 1 copper cent or nickel at a time.
Since I go to about 2 to 4 coin shows a month, I've seen a real increase in error coins. However, those that could, might, should, possibly be from a grease filled die just don't sell well. If you tried ebay you may be offered a dollar or millions. With ebay you just never know.