No. it's not Unc or even close to it. I see three vertical folds and a horizontal fold. There's even a slight loss of design on the right vertical fold. So you're looking at VF or VF+.
To know more about the 1911 $1 issue, find a copy of the Charlton Standard Catalogue of Canadian Government Paper Money. They're not scarce and circulated extensively for a number of years.
Your note is series A, green line, the very first series. The earlier series are worth more according to the catalogue but I see overall parity in the marketplace, meaning collectors looking for a certain grade of 1911 $1 note are not going to pay a whole lot more for an early green line series note, especially in low to middle grade. In fact, while interest in early Dominion notes is overall strong, the 1911 series is lagging a bit. I wish I knew why.
A VF note like yours catalogues $650. Your note looks bright and fresher than usual, so I would add a small premium on that. The next grade up catalogues $1,300.
Nice find.
M