AUSTRALIAN GOLD SOVEREIGNS. George V, 1910-1936. Gold Sovereign, 1920-M, Melbourne. 7.99 g. 22.05 mm. S.3999. Very hard to find in this grade. Spink lists UNC at £5750. A PCGS graded MS62 coin realised $8225 (incl. BP) in a Sept. 2013 sale by Heritage Auctions in US. Housed in a secure plastic holder, authenticated and graded PCGS MS62, certification number 32858050.