 No commemorative issues of the 1c and 2c coins have been produced, and with the exception of the 2016 issue, there have been no commemorative issues of the 5c and 10c coins.Many commemorative versions of the 50c coin have been placed in general circulation since 1970.The first $1 coin commemorative issue was in 1986, the first 20c commemorative issue in 1995, and the first $2 commemorative issue in 2012.