Oak Barrel Butter Churn on a stand

This churn is an oak barrel with cast iron fittings lying in horizontal position on a solid 4 legged trestle which brings it up to about thigh height. There is an oval opening in the middle of one side that is covered by a wooden lid with a cast iron latching system. At one end there is an iron crank handle that is attached to a central horizontal shaft. Inside the barrel it would seem as there used to be a paddle device but this is now missing and all that remains are three wooden pegs that may have mounted this device. The crank turned a paddle device inside the churn as well as rotating the barrel and the subsequent agitation would cause the cream to turn into butter. The barrel churn was an innovation of 18th century Europe.