No issued note exist in grades above EF so you prefer an UNC example the Specimen is the way to go. The note pictured below is the actual note under consideration. The item "BC-17s 1935 $500 Bank of Canada Specimen Note, PMG CH UNC64. Very Rare Note" is in sale since Tuesday, May 29, 2018.
This item is in the category "Coins & Paper Money\Paper Money\ World\North & Central America\Canada\Bank of Canada". The seller is "themonetaryman" and is located in Moncton, New Brunswick. This item can be shipped worldwide.