274.1. Where a property was owned by an individual, whether jointly with another person or otherwise, at the end of 1981 and continuously thereafter until disposed of by him, the gain determined under section 271 in respect of the disposition of that property shall not exceed the amount by which the aggregate of(a) his gain calculated in accordance with section 271 on the assumption that he had disposed of the property on 31 December 1981 for precedes of disposition equal to its fair market value on that date, and
(b) his gain calculated in accordance with section 271 on the assumption that that section applies and thati. subparagraph b of the second paragraph of that section is read without reference to the words “one plus”, and
ii. the individual acquired the property on 1 January 1982 at a cost equal to its proceeds of disposition as determined under paragraph a, exceeds
(c) the amount by which the fair market value of the property on 31 December 1981 exceeds the proceeds of disposition of the property determined without reference to this section.