19(1)A will or part of a will that has been in any manner revoked is revived only
(a)
by a will made in accordance with the provisions of this Act, or
(b)
by a codicil that has been made in accordance with the provisions of this Act,
that shows an intention to give effect to the will or part that was revoked.
19(2)Except where a contrary intention is shown, when a will that has been partly revoked and afterward wholly revoked, is revived, the revival does not extend to the part that was revoked before the revocation of the whole.