Paragraph 20

If for any reason whatsoever the trusts of these presents should completely fail or if Chequers should be left unoccupied by any of the official persons for whose benefit the said trusts are intended for a continuous period of upwards of twenty consecutive years then and in such case if the settlor and Lady Lee or either of them shall then be living the whole of the real and personal estate comprised in and settled by these presents shall be conveyed and transferred free of expense to the settlor and Lady Lee or the survivor of them for their his or her absolute benefit but if both the settlor and Lady Lee shall then be dead then the whole of the said real and personal estate (except the pictures relics and works of art and the Chequers Trust Fund) shall be sold and the net proceeds of such sale shall be added to the capital of the Chequers trust fund which trust fund shall thenceforth be held by the Public Trustee Upon trust to pay the income thereof to the Trustees of the National Gallery in London to be applied by them for or towards the purchase of additional pictures for the nation and in that event the whole of the pictures relics and works of art hereby settled shall be handed over to the Trustees of the said National Gallery for exhibition in any of the National Collections.