This coin has been beat to heck. It’s been around the block, through the grinder, and roughed up. But, the wear is honest, and despite some ugly rim dings, I would ground this as Good (G4).
The reverse shows the Australian coat of arms. This is a shield flanked by a Kangaroo on the left and an Emu on the right, with a scroll below. The shield has a Saint George cross in the center, and six inescutcheons representing the Australian states of New South Wales, Victoria, Queensland, Tasmania, Western Australia, and South Australia. Ontop of the shield is a starburts – the ‘Star of Federation’. The scroll reads “Advance Australia”. The legend on the coin reads “THREEPENCE” with the date below the crest.
On the obverse, the 3 pence has a leftward facing Imperial Bust of George the 5th of England. He is shown in full regalia, with a crown and dandy looking vest. The legend reads “GEORGIVS V : D : G : BR : OMN : REX : F : D : IND : IMP”. The British love their abbreviation, right? Note that some of the letters we would normally use are replaced with others – ie; V instead of U because the Roman alphabet did not have those letters. This stands for George the Fifth, Dei Gratia (by the grace of god), Britanniarum Omnium Rex (King of all the Brittons), Fidei Defensor (defender of the faith), India Imperator (Emperor of India).
Identification code: Australia KM-24 (1911-1936)
Mint Mark: n/a (which means London)
Mintage: 2,400,000 (fairly low for the series; this is a semi-key date)
Country of origin: London (produced for Australia)
Composition: 92.5% Silver (Sterling)
Weight: 1.41g (0.0419 oz ASW)
Other details: I purchased this coin from a hoard of coins and medals that a precious metal broker had in a 5 gallon jug.
Estimated Value: $5-20 with silver at ~$33/oz (without the rim dings, the price would be much higher)