It's not difficult to find info about this set, it's all there in Charlton's, the must have resource for Canadian coins.
.925 silver
84,397 sets issued
Original issue price $129.45
Can often be purchased today for melt value, about $70
There's always at least fifty on eBay at all times.
You haven't been looking long enough, a month is a very short time, or you have unrealistic expectations price-wise.
... It looks as if a chunk of the right foot of the letter has broken off.... That's what it looks like to me too, and that's damage not an error. We can never know exactly how it happened The rotation is insignificant, must be at least 45 degrees for any premium. As with any coin if you like it ke...
That coin is broad leaves.
Any like it will also be broad leaves.
Look at the pic of the 1907 on this site to see Victorian leaves, then the pic of 1911 to see broad leaves.
They are the Charlton Catalog numbers.
Before you buy or sell any banknote you need a copy of Charlton's, otherwise you are collecting with your eyes closed.
Same goes for coins.