One man is on a mission to reunite families with their old, lost photographs.
David Gutenmacher, from the Museum of Lost Memories in New York, has set up an Instagram account to help people.
He told Moncrieff it all started a few years ago in a thrift shop.
"There was a bucket full of photographs sitting in the corner," he said.
"I immediately started looking through them and thought that if my family photos are in there, I would hope that someone would flip them over to the back, see my name and try to contact me.
"I started doing it for other people."
David said there was nothing identifiable in those first photos.
"There weren't names on the back, they were just plain old photographs," he said.
"I think a lot of them were ripped out of photo albums and put in this bin at this particular store.
"Those first photographs I've actually never been able to return."
David said one of his favourite returns was an Irish one.
"I posted a photograph that we didn't know was from Ireland, it was just a photograph that said 'Hughie and June's wedding' on the back," he said.
"It was a picture of a couple that had just gotten married.
"Months went by [and] we had no leads - and one of my followers took it upon themselves to go through some of the old posts that I shared.
"[They] saw this one, and based on the comments of people guessing it eas taken in Ireland they Googled 'Hughie and June Ireland'.
"They found an article that mentioned a musician's parents, their names were Huey and June, and the musician was from Ireland.
"We got in contact with that family and were able to return that photograph - but not only that one.
"That family looked through the page... and saw multiple other photographs that belonged to them as well".
David said it is easier to return some things than others.
"I was able to return one of the first things I ever shared online - it was an old VHS tape," he said.
"I posted the VHS tape on Instagram and TikTok and it got two million views.
"One of my followers was able to find the owner for me".
He said he has also been looking further afield than the US.
"Whenever I'm travelling I will make sure to visit antique shops - whether it's Paris I was in last summer, or across the United States," he said.
"I also order things online, and I have a PO box where people who find things all over the world can ship lost memories that they find to me".
David said his fastest-ever reunion was only 10 minutes.
"Just last night, we returned something in less than 45 minutes," he said.
"I think the quickest ever was within 10 minutes.
"Last night someone just recognised their friends in one of the photographs, and we were able to get in contact with them within 45 minutes.
"That to me is the best."
He recommends everyone looks through his collection "because you never know that you might recognise someone, and you never would have thought you would have seen someone you knew on the page.
"It's happened plenty of times now," he added.
Listen back to the full interview below:
Browse the Museum of Lost Memories here