A Birmingham Mint Collection Limited Ed. struck to mark Australia day 1977 and comes with a COA . Each ingot weighs 28.3 g and is Assay Office hallmark plus the 'H' of the mint. The 20 ingots depicting a different achievement of our explorers are strikingly rendered in fine frosted relief against a mirror-finish background. Comes with display case and booklet. For sale by negotiation ( realization due to heath issues ) 0414528823 or justgoldcoins.com