According to Morpeth businessman Trevor Richards, coin collecting has become "sexy again".
And as such, he's calling all numismatists - the official name for coin collectors - as well as people who might just have a few old coins lying around to visit him at his Campbells Store on Sunday.
Mr Richards will have three coin experts in his store to offer free evaluations to anyone who wants to bring in some coins.
"I think everyone has some old coins that have been left to them, or maybe some old notes that they have picked up in their life," he said.
"This is the opportunity to have them valued so you know exactly what you've got. And it's free.
Mr Richards said coin collecting is no longer just the realm of 90-year-olds.
"It's fashionable again, maybe it's due to the price of gold going through the roof, but unfortunately we don't have coin dealers in Maitland any more," he said.
"Maitland has a small coin collectors club and there's a bigger one in Newcastle, but we thought we'd give this a go and see what happens.
"The valuers will be willing to buy any coins or notes they like, provided of course they can strike a deal with the owner. At this stage it's a one-off event, but if it does well hold another one with one of Australia's foremost experts in the store."
The valuations will take place from 10am to 4pm.
Oh, if you want to know how expensive coins can get, last year in Melbourne rare coin dealer Coinworks sold the Proof 1930 Penny to a collector for $1.15 million.