In 1998, marking the 10th anniversary of the Silver Maple Leaf series, a single-issue 10-ounce version was produced. The Silver Maple Leaf (SML), a staple of pure silver bullion, was only produced in 1oz coins. It was only for the commemoration of the 10th anniversary of the SML, that a reverse proof 10oz Silver Maple Leaf was struck. Unfortunately, due to price ($200, silver spot ~$6) and lack of interest, the planned 30,000 10oz SMLs were not sold out, and more than half were taken back for melting. Their cases were also recycled for one of the 2004 2oz bimetallic coins that the RCM issued. This is also the reason that some of the silver COAs will number above 14,000, though only around 13,000 of the coins survived.