CANADA. Quartet of 3D 20 Dollars (4 Pieces), 2012-17. All NGC PROOF-70 Ultra Cameo Certified. 1) 2012. Flora and Fauna. Aster with Bumble Bee Colorized. KM-1266.2) 2013. Flora and Fauna. Coneflower and Blue Butterfly Colorized. KM-1361.3) 2016. Venetian Glass. Snail Colorized. KM-Unlisted. 4) 2016. Bejeweled Bugs. Butterfly. KM-Unlisted. From the Mayer Collection of Canadian NGC Registry Sets.