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Much to catch up on from the last few weeks. As you may know A History of the World is not just a radio series, we're trying to get as many people as we can across the country to look at objects in a new way both in local museums and in their own homes. And sometimes we're getting them to do it in the middle of fields.

A History of the World was at both the and the finding people with great objects and getting them to add them to the website.

There are some fantastic old trucks like a Bedford J Type Tipper, a Rowe Hillmaster and even a Scammell Show Engine that has helped power fairgrounds for 60 years. And lots of craft tools including a thatcher's legit, a bark stripping iron, lace bobbins and a leathermaker's ploughgauge.

And, of course, there were plenty of farming tools on display from a huge threshing machine to some manual sheep shears. Though the one that has me both fascinated and slightly scared is this pig scudder. I feel it is only a matter of time until it turns up in a West Country horror movie.

You can see all the objects from Devon and the things we found in Cornwall due to the help we had from a team of volunteers from . So I'll leave it to Nina Davey, who marshalled the troops, to explain how they uncovered the most unlikely and undoubtedly the oldest object of the day:

We were approached in the coffee queue by a chap who heard us talking about A History of the World. He asked us if we were interested in a coin he had in his pocket. It was a 2,000-year-old Roman coin depicting Caligula. He regards it as lucky as the day he found it his son survived a bomb explosion in Iraq.

I've just checked the change in my pockets and, sadly, there are no Roman emperors to be found. Mind you, they don't accept Caligula in the canteen anyway.