The features of this issue, retained for all medals in the centenary series are: Identical reverse deigns, size of 63mm giving a weight in silver of around 5oz. Troy. Three Identical medals in 9 carat gold, sterling silver and bronze. All the medals came in a fitted case, of various colours, with a descriptive card. The retention of the arms of the Royal Mint, on every medal in the Centenary series, seems rather illogical, except as a cost cutting device, but does serve to distinguish which medals form part of this series of centenary medals, from other contemporary anniversary medals.

Alongside the centenary series the RM issued various similar medals commemorating anniversaries, not always centenaries, commissioned by various organisations. The parallel anniversary series had an identical specification except that both Obverse and Reverse changed with each issue.