A rare 'one-in-a-billion' spherical egg was found on a farm - and could fetch up to £200 at an auction.

Egg processer Ali Greene was working at a shift when she saw one egg "moving differently" on the conveyor belt."



Ali, who works for Fenton Farm Eggs in Devon, discovered that the chances to find a round egg are "one in a billion". "

After doing some research she learnt that in the past a round egg was sold for £200.

And she is now hoping to sell the egg at an auction sale in Exeter on March 18 to raise funds for a charity.

She said: "I have no idea what chicken it is. I don't even know why a chicken would lay a round egg."

The 57-year-old egg processer was listening to the radio when they started talking about the rarity of round eggs.

Hoping to find one while working, on December 17 she came across an egg that was different to the others.

The farm, which processes around 14 million eggs per year, gets different shaped eggs all the time - including some shaped like Maltesers, said Ali.

But this was the first time a round egg was ever discovered on the farm.

"I could have spotted one [round egg] in my past three years but I was never looking for one," she said."

"I have to work for another 13 years to find another rare egg."

After finding out they could fetch thousands of pounds from the egg, Ali who is a volunteer for Devon Rape Crisis, decided to auction it for the charity.

But she is "terrified" of dropping it before the auction date. "

Ali added: "I have to take to the auction house and I am absolutely terrified if I drop it."

"It is wrapped in rock salt to keep it preserved."

"I am hoping to make £200 from it - the main thing is that the charity raises money."