There are many varieties based on "finish" - the way in which the coin dies are polished and prepared before production. "Proof" coins have mirrored, reflective backgrounds, while the design is frosted - I think these are sometimes called "FDCs" in Europe. "Specimen" coins have mirrored, reflective design details, while the backgrounds are made of many small parallel lines. And "Brilliant Uncirculated" coins are made for coin sets and are slightly more mirrored than normal circulating coins.
All of these varieties can only be found in coin sets and are usually quite expensive. (A specimen set costs about $60, so a toonie from one of those sets might be sold for $20.) There are also sets where proof coins are struck in silver (sometimes with gold plating as well). Some earlier proofs were sold by themselves, without being inside sets. There are a lot of different non-circulating varieties and I don't know all of them - hopefully someone here will be able to provide a list.
All of these varieties can only be found in coin sets and are usually quite expensive. (A specimen set costs about $60, so a toonie from one of those sets might be sold for $20.) There are also sets where proof coins are struck in silver (sometimes with gold plating as well). Some earlier proofs were sold by themselves, without being inside sets. There are a lot of different non-circulating varieties and I don't know all of them - hopefully someone here will be able to provide a list.



















