Mr Mould shared the videos on twitter of his own restoration work on a mysterious 1618 painting called 'The woman in red'.
The first video shows Mr Mould applying a cleaning agent to remove layers of varnish in a matter of seconds, returning a portion of the elegant painting to its former glory.
"A remarkable Jacobean re-emergence after 200 years of yellowing varnish," he tweeted.
"Still a way to go, but what a transformation!"
A remarkable Jacobean re-emergence after 200 years of yellowing varnish 1/2 pic.twitter.com/yBGNGDcNd7 — Philip Mould (@philipmould) November 6, 2017
Following the post, which has been liked 184,000 times, he shared another video showing the delicate process involved in cleaning the artwork.
Little is known about the painting other than it is from the Jacobean era, was painted in 1618 and the woman was 36-years-old, according to Mr Mould.
Mr Mould said he was keen to search for more clues on the painting when he can see intricate details not visible under the yellow varnish.
“With cleaning, we hope to get more clues in the dress and the jewelry that could be a message as to her identity,” Mr Mould told the Huffington Post.
He said the painting was “reminiscent of" pieces done by famous British painter William Larkin.
Mr Mould said he would post a photo when the art was fully restored.
