When collecting the complete threepence series the collector should always apply the quality over quantity principle. Current prices are such that even on a low budget the collector should be able to collect most post 1937 coins in UNC or better condition. However, it may seem unusual for the new collector to this series that many apparently worn coins are graded as UNC. The size of the coin and the care required in its production often means that many years are plagued by poor strikes and filled dies.
For type collectors there is no choice when selecting the Edward VII series with the 1910 issue being the only year it was run. This being said it is quite easily obtainable in UNC/Gem condition and should be purchased as such. The 1936 threepence of George V is the best struck up of the series and should be the one pursued by the type collector. The type collector should look at purchasing the 38/39 coins as these tend to be the best struck examples in the George VI series. The 53 and 56 tend to be the best examples in the Elizabeth II series.