If you live in Canada check with some coin dealers there. The Canadian silver dollars, the large ones are 36.06 mm in diameter where as the U.S. silver dollars up to 1978 are 38.1 mm in diameter so dollar wall frames made here have holes that are to big. Most of the older Canadian dollars are collector items and have a large collector base in both countries. In Canada you can try J&M Coin email them at coins @jandm.com. You can also try Gatewest Coin www.gatewestcoin.com, the only email address I have for them is usa@gatewest.com. Please find a system that preserves the collectability of the coins and never clean them. Hope this helps.