(2) This section shall not apply with respect to:
(a) Any amounts payable under the terms of a trust to income beneficiaries, unless a deduction was allowed under section 170 (f) (2) (B), section 2055 (e) (2) (B), or section 2522 (c) (2) (B) of the Internal Revenue Code of 1954;
(b) Any amounts in trust other than amounts for which a deduction was allowed under section 170, section 545 (b) (2), section 556 (b) (2), section 642 (c), section 2055, section 2106 (a) (2) or section 2522 of the Internal Revenue Code of 1954, if such other amounts are segregated from amounts for which no deduction was allowable; or
(c) Any amounts transferred in trust before May 27, 1969. [1971 c.197 §2]