The Chancellor and council for the time being of the Duchy of Lancaster may, if they think fit, from time to time contract and agree with F1the Secretary of State for Defence, for the sale of, and may absolutely make sale and dispose of, for such sum or sums of money as to the said Chancellor and council appear sufficient consideration for the same, any lands or rights belonging to Her Majesty in right of the said Duchy, which for the purposes of the M1Defence Acts, 1842 M2 and 1860, the said Secretary of State may from time to time deem it expedient to purchase, and such lands or rights may be granted and assured to the said Secretary of State, and the said moneys shall be paid and dealt with, as if the said lands or rights had been sold under the authority of the M3Duchy of Lancaster Lands Act, 1855.