Canada 10 cents 1956 , dot under date ?

Hello ,

Can you help me , i have this coins ( https://en.numista.com/catalogue/pieces386.html ) , i see a difference .
On mine , we see a dot on the date ( on the "round" of 5 ) .





My question is  :
Is what i own this coins or i do error  ?

several variant exist , but i don't see mine :
http://www.coinsandcanada.com/coins-prices.php?coin=10-cents-1956&years=10-cents-1953-1964

Thanks for your next answer !
@+
Lilian , Normandy , France

I would believe yours to be an error, but I think they're all generally considered errors. The typical dot is between the 9 and the 5, but I don't believe that was ever intentional. One of the major Canadian catalogs doesn't list that as a type at all. I've heard of having 2 dots, but yours is a little bit different.

Hello ,
Thanks for your answer , i'm ok with you , it's not the " typical dot " , i simply think it's a " surplus metal " ( excess metal , translation not sure ) .
This "surplus" give a few gain , i suppose ?

@+
Lilian