As far as I am aware, there has been no report of any varieties of this coin.
First of the George V coins, the obverse featured the effigy designed by Australian
sculptor, Bertram Mackennal, who was appointed to the Royal Mint in 1910. Mackennal
was not an engraver and produced designs which were technically difficult to reproduce.
Nevertheless, British and colonial coins bore his portraits until 1936.
121 rim denticles
115 rim denticles.
It is not generally known that the 1911 threepence saw the introduction of a
new reverse die along with the George V obverse die. (I discovered it myself today
while preparing this page!)
In superb matte proof, this pattern coin ranks amongst the finest threepences ever
minted. It is also historically important because not only did it introduce two
new master die types but it is also the only threepence ever struck with a milled
The obverse is the new die featuring George V and the reverse represents a new
matrix differing from the 1910 threepence in the number of rim denticles.
Tthere are 93 ridges on the milled edge.