I must have been a couple of crinkles (or crankles) up from you a few years ago
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Nice wall. There is also one in Geldston, Norfolk opposite the Wherry Inn.
As well as being decorative they are quite clever - a single skin of brickwork is made stable by corrugating it. Of course it is also longer and occupies more space but there is still a saving in bricks compared to a double thickness wall.