Australia 1920-M shilling
This coin was lot 9217 in Ponterio sale 150 (Los Angeles, August 2009), where it sold for $2,300. The catalog description noted, "AUSTRALIA. Shilling, 1920-M. PCGS MS-63." The type was struck 1911-36 at London, Melbourne (this specimen) and Sydney. Though not rare, the price ascends rapidly with grade.
Recorded mintage: 520,000.
Specification: 5.65 g, .925 fine silver, .168 troy oz ASW, 23.5 mm diameter, reeded edge, designed by E. B MacKennal and W. H. J. Blakemore.
Catalog reference: KM 26.
- Cuhaj, George S., and Thomas Michael, Standard Catalog of World Coins, 1901-2000, 42nd ed., Iola, WI: Krause Publications, 2014.
- McDonald, Greg, The Pocket Guide to Australian Coins and Banknotes, 23rd ed., Lavington, Australia, 2017.
- Ponterio, Richard, and Kent Ponterio, Ponterio sale 150: The 2009 Los Angeles ANA Auction, Irvine, CA: Bowers and Merena, 2009.