A coin set containing Proof issues from particular year. A few sets contain anomalies such as the 1804 dollar and eagle in 1834 presentation Proof sets.
a complete set of proof coins of each denomination produced by a mint
Group of proof coins of one date, as sold by the mint in the year of issue.
a complete set of proof coins of each denomination made in a year.
a group of the different denominations of the proof coins made for one year.