From the scan provided (thank you for that BTW), your note is catalogued as 375-18-06: Imperial Bank of Canada, 1923 $10, signed Peleg Howland / A.E. Phipps.
From the Charlton Standard Catalogue of Canadian Bank Notes, 4th Edition, this note is estimated to be worth the following amounts:
VG: $75
F: $100
VF: $175
EF: $275
AU: $450
UNC: $600
Your scan looks to put this note at about a grade of "Fine (F)", but I would have to see it in person before I stand behind the grade.
Now, the catalogue I used is outdated: I only have the 4th edition, which was released in (I think) 2002. The 5th edition was released in 2006 (I think), and the 6th edition is due out this summer. I expect the values have gone up, but I am unsure as to by how much.
Hope that helps.
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BWJM, F.O.N.A.
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