Is it a camera or is it a projector?
Whatever it is - it was found in the Belfast Telegraph building and brought along to the Ulster Folk and Transport Museum, on Thursday, where the BBC were filming four episodes of the popular daytime programme 'Flog It!'.
Presenter Paul Martin said he reckoned the piece of equipment dated back to around 1910.
"It's fascinating," he said. "Whatever happens, when the Belfast Telegraph moves this should be in a museum. The public deserve to see it."
Paul said he was delighted to be back filming in Northern Ireland.
"We always have a fantastic time here - and this is a wonderful venue. It's the first time I have been here and I can't wait to hop on to some of the trains and trams.
'Flog It!' is now in it's 15th series and the filming of it's 1,000th episode will be starting shortly.
The programme regularly brings in around two million viewers.