Consigners Beware. ??In my personal experience the Goldbergs can give a very low estimate for a coin to be sold at auction, then fail to deliver after it is bought and paid for (although they do return the money). ??This is likely to be the case where the consigner does not know the value of the coin. If the coin sells just above the estimate it is reported as sold at the time of the auction (only to be changed to not sold some weeks later). Then, in my case, even though the invoice had been served and the money paid, I received notification that the coin had not sold.??I am waiting to see this particular coin coming back on the market at a much higher estimate.