(1) Except as provided in section 135, receipt of old age (contributory) pension by a person shall be a disqualification for the receipt by that person of old age (non-contributory) pension.
(2) A person to whom benefit under section 92 is payable or in respect of whom the weekly rate of old age (contributory) pension payable to another person is increased by virtue of section 87(1) shall, except as provided in section 135, be disqualified, for any period in respect of which the said benefit under the said section 92 is payable to him or the weekly rate of such pension payable to such other person is so increased, for receiving old age (non-contributory) pension.
(3) A person who has attained pensionable age and is in receipt of a widow's (contributory) pension or deserted wife's benefit shall, except as provided in section 135, be disqualified for receiving old age (non-contributory) pension for any period in respect of which she is in receipt of the widow's (contributory) pensio