Other compositions were also used for 1 cent coins such as the 1978 (incorrectly listed as 1968 at Downies) specimen struck in aluminium or fine silver proofs in 1991, 2006 and 2011.
Besides the standard composition, other materials were used for 1-cent coins, such as a 1978 (incorrectly listed as 1968 at Downies) specimen made of aluminum or fine silver proofs in 1991, 2006, and 2011.