20 Dollars - Elizabeth II Black-Eyed Susan

The Black-Eyed Susan dollar is part of the RCM's ongoing fine silver flora series, which by 2015 had firmly established colored enamel and selective plating as house techniques. What distinguishes the 2015 issues within that program is the mint's transition to .9999 fineness across its bullion-adjacent collector line — a purity standard that requires more careful handling during the striking process due to the metal's increased softness relative to .999.