5 Dollars

The Weyburn Security Bank was chartered in 1910 and opened for business in Weyburn, Saskatchewan, at a moment when prairie incorporation fever was running hot. It never expanded beyond a handful of branches and was absorbed by the Standard Bank of Canada in 1917 — a lifespan of roughly seven years, which makes any surviving note from this issuer genuinely uncommon rather than artificially scarce.

The Canadian Bank Note Company held a near-monopoly on chartered bank printing in this period, supplying essentially every small prairie bank that briefly flourished before the consolidations of the late 1910s swept most of them away.