For comment, below find an example of a Canada 1858 10 cent. In the US, this might grade Fair 2 or Poor 1. Poor 1 has also been referred to as Basel State 1. What would the coin be graded in the Canadian system? In the US, coins in the 1850s with grades 1 or 2 may, due to rarity, be priced in excess of coins with higher grades (See PCGS website). Does this apply to Canadian coins? If so, in similar manner or proportion as in the US? 2.05 grams (2.32 grams is correct for an uncirculated example). 18mm. OBVERSE: 'IA' OF 'VICTORIA' IS JUST READABLE. REVERSE: IN HAND,THE '858' IS CLEAR.
The primary reason very low grade coins sell for higher prices is the Low-ball registry set phenomenon, IMO. I can’t think of any other reason why somebody would pay more for a coin with more wear. (Besides, you can always add wear to a coin, but you can’t add details or luster) Unless Canadian collectors are experiencing a similar low-ball fad, I don’t see why this coin would be more desirable than an AG3 or G4 example. I certainly wouldn't pay more. Just my opinion.
A well circulated coin for sure. Not sure why you think, or care, that it would grade differently in Canada, but then I've never dealt with Canadian coins much. I get them in change here in Montana, and usually keep them as many are in nice shape, but never as old as your coin. LOL Good luck.
Canadian grading is stricter than US. Your coin would be fortunate if it got a fair 2 although a Poor 1 is more likely. I don't know any collectors in Canada making a poor date set of any Canadian denomination. I just bought Poor and AG 3 Canadian coins from a Binghamton, NY dealer for full silver value. Yes that is sterling for 1919 and before. When I go to London I visit the two coin dealers there and they sell such coins at a little over melt value. Your coin in AG3 has a Canadian retail of $12 or about $9.60 in the states. Visit Coins and Canada website to learn grading and see the price guide. Keep collecting. Coin collecting is an interesting hobby.
This sentence got me curious so I went to check the exchange rate. When you get them in change, is it USD1 = CAD1?