Coinsandcanada.com

Hello,
I recently began tearing out some old shelving in my basement and discovered an old hidden compartment containing these $10 and $20 notes.

Of the 1969 $20s, three are star notes and all but one are signed Lawson/Bouey, with the one other being signed Beattie/Rasminksy. The rest don't seem to be special in any way other than just in how great they look as a collection. The 1979 $20s aren't in as good condition as the rest of the bills and don't appear to have serial numbers that stand out.
The 1971 $10s look great as well but I am unsure about whether the serial numbers are interesting or not.

I really just don't know what to do with this great find. Is it worth much more than just the face value of the bills? Should I just cash it all in at the bank?

What a great find for you, congratulations! Your replacement bills will hold a premium over the regular bills. Either way, free money.

Go to the banknotes section on this site to look up values for each one, just assume each as fine to very fine.

I would not take them to the bank, they will give you face value. Try putting them on Kijiji first, chances are somebody out there would give you more than face value for them.

If you find any of great value I'd suggest grading them to get a solid value and to keep them in good condition.