SCP = Standard Cycle Products, right? SCP was bought by CCM "by the end of the war" according to John McKenty, author of The CCM Story. After that, SCPs were basically CCMs with a different badge. Yours does not have a CCM frame or parts, so I'm thinking late 1930s to early '40s. The SCP factory at 600 Victoria Park, Toronto, closed in 1961.
Why do you have only one photo? Was this a bike that was in your family but you no longer have?