phrenzy said:Went to a couple places today. Got it XRFd and it vane back 22k alloyed with copper like you'd want. Weighed in expensive scales out of the packet and it was 1/100th of a gram under so within tolerance for a slightly worn coin.
Opinion was divided but intriguingly in one of the big volumes of Australian coins I wasn't familiar with (looked like the white pages) listed 2 known examples of Sydney 1877 S st george sovereigns so they were made and do exist though never for circulation, the assumption being that the mint only made a small handful of prototypes and a couple escaped. Good news though the balance of probability is still that this is a fake.
Maybe this went home in someone's pocket from the mint on the day they struck them.
Just remember if it is real and the only way people got them were if it was stolen from the mint then arguably if could be government property (Think 1964 peace dollar) on the other hand if even 1 or 2 were sold or given away to friends or private collectors, if it is real then could be a fantastic score!
Best of luck to you getting it authenticated, hope its real and worth heaps for ya
(One member recently scored a proof florin valued over 50k so Extremely rare coins sold by those who do not know or realize can happen and if its real you may just have him beat!)
Not to sure who the Australian Expert on sovereigns is but my guess is it might be worth a trip to one of the major auction houses!