Does anyone know melt value of $1.00 Canda silver proofs?

I've got 13 of these from the 1970's and all are 1 dollar silver proofs still in the case from the Royal Canadian mint.
I believe these are commemoratives. Most are 100 year anniversary of one thing or another each year.
I want to make sure I sell them at a fair price.
Thanks in advance.
Joe
I believe these are commemoratives. Most are 100 year anniversary of one thing or another each year.
I want to make sure I sell them at a fair price.
Thanks in advance.
Joe
