Welcome to the forum,
The Charlton Canadian Government Paper Money Catalog 22nd edition list this note as the most common signature $1,000 note. It's valued at upto $1,650.00 in perfect gem uncirculated condition. We would have to see a scan to determine your notes condition, as even just some handling and light folds can make a huge difference in value. An almost uncirculated note would be valued at $1,250.00. These are catalog values with selling prices usually less than these on common notes. I hope this helps. Murray