Stocks Mill Stocks Mill Rye Road Wittersham Kent TN30 7ER A well-preserved, Grade II Listed post mill dating from 1781. The exterior structure has been fully renovated with great trestle and sweeps in position. There is a small museum display. Opening times (this year): Open 2 May-26 Sep, Sun, Bank Hol Mon, 1430-1700. Admission: £1.00 (Adults) £0.50 (Children) Find Stocks Mill: