13.—(1) The widower of a woman who—
(a)died during the period beginning with and including 6th April 1988 and ending with 31st August 1989 without having made an election under paragraph 10; and
(b)either was in pensionable employment when she died or had ceased during that period to be in such employment,
may make a corresponding election under this paragraph.
(2) A married woman who—
(a)ceased to be in pensionable employment during the period mentioned in sub-paragraph (1); and
(b)on ceasing to be in such employment did not immediately become entitled to payment of retirement benefits,
may make a corresponding election under this paragraph if the conditions in sub-paragraph (3) are satisfied.
(3) The conditions referred to in sub-paragraph (2) are that—
(a)she did not again enter pensionable employment; and
(b)she has become entitled to payment of retirement benefits.
(4) Where a woman to whom sub-paragraphs (2) and (3) would otherwise have applied dies before becoming entitled to payment of retirement benefits, her widower may make a corresponding election under this paragraph.
(5) An election under this paragraph shall—
(a)be made by written notice given to the Department within the appropriate period;
(b)specify the period in respect of which it is made; and
(c)be treated as an election to make payment by Method B.
(6) The appropriate period referred to in sub-paragraph (5)(a) is—
(a)where sub-paragraph (1) applies, the period beginning with and including 1st March 1989 and ending with 31st August 1989;
(b)where sub-paragraphs (2) and (3) apply, 6 months from the date on which she becomes entitled to payment of retirement benefits; and
(c)where sub-paragraph (4) applies, 3 months from the date of her death.