Millionaire Hoarders returns to Channel 4 with a new series, this time featuring expert Ronnie Archer-Morgan. In the second episode, airing on May 9, Ronnie visits Sally, a Nottinghamshire collector and founder of the UK's sole Horse Museum.

Sally is eager to share her equestrian treasures with the public but desperately needs funds to secure the museum's future.

While exploring her vast collection, Ronnie stumbles upon a remarkable painting stored in a back room for five decades. The artwork is revealed to be the work of renowned 18th-century English artist George Stubbs, famous for his equine paintings.

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Through further research, Ronnie identifies the artwork as a portrait of a grey cob named Rainbow, dated to 1802-4, created when Stubbs was nearly 80 years old. Now, the question is whether Sally will be willing to part with this masterpiece.

Ronnie expressed his excitement and emotion over the discovery, stating, "I've just been handling and talking about a Stubbs.

"It's been in my hands; it's a wonderful thing - this is why I love my job. Getting the best price for Sally so she can continue her dream."

Ronnie Wood paid a heartfelt tribute to a museum owner, saying: "Her dedication to her museum brought me to tears. She's so humble and dismissive of any praise for what she's done, but what she's achieved is monumental.

"The volume of material she's collected and the finances she's committed to her museum is amazing."

Ronnie also shared his own experiences as a collector, saying: "I know what it takes to put a body of items together and the minute you start collecting, you start to understand an aspect of life that most people have probably never considered.

"I know that journey because I've put so many collections together, so I grasp what they're doing.

"I love these people for putting their life's energy into something which is nearly always for themselves.

"Their collection isn't to show off or grandstand, but is something which they have become impassioned about and they follow that passion through with their life's energy and their money. They commit to something they love."

The episode of Millionaire Hoarders will air on Channel 4 on May 9 at 8pm