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Knocker or plunger churn from Llanddyrnog, in the form of an oak coopered barrel, tapering from the base to the cylindrical ash collar, with four iron bands. Two extended staves house the lid with a plunger shaft which fits through a hole in the lid. The plunger shaft would be worked up and down and rotated to churn the butter. This type of churn was common from the 1600s into the late 1800s.