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Balance Beam Base, Mon-Brec Canal, Pontnewydd, Cwmbran 9 July 2015
The base for the pivot of a balance beam for opening and closing the lock gates. To the right is a hole for the paddle gear used to open and close paddles controlling water levels in the lock. When I was a child, most of the locks in Pontnewydd still had these, but they have all disappeared now.