Hi edisto,
You will be happy to know that this note is not worthless!
I checked the
Charlton Standard Catalogue of Canadian Bank Notes, 5th Edition and found this note. Its catalogue number is 635-14-02.
Note that there are three varieties to this issue (-02, -04, and -04a). The first one, yours, has a rounded lathework design in the top-left corner with the big 4 in it. The second one had its big round lathework changed into an oval format, one serial number was dropped and the other was moved further towards the left, and there were some modifications to the tint. The final variety is like the second but features a town-specific overprint.
Your note is the first variety as I mentioned and it is worth approximately $750.00 in the condition shown. I estimate the condition to be G-VG (a split between the two) and the catalogue values are $550 for G and $1,100 for VG.
If you are interested in selling it, you are more likely to get a better offer from a collector than a dealer, and this site is full of collectors. But as we're dealing with a somewhat valuable note, you might be best advised to obtain multiple offers or an independent fairness opinion before selling the note.
I hope the above has been helpful.
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BWJM, F.O.N.A.
Life Member of CPMS, RCNA, ONA, ANA, IBNS, WCS.
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