collectibles gain
(5) Collectibles gain and loss For purposes of this subsection— (A) In general The terms “collectibles gain” and “collectibles loss” mean gain or loss (respectively) from the sale or exchange of a collectible (as defined in section 408(m) without regard to paragraph (3) thereof) which is a capital asset held for more than 1 year but only to the extent such gain is taken into account in computing gross income and such loss is taken into account in computing taxable income. (B) Partnerships, etc. For purposes of subparagraph (A), any gain from the sale of an interest in a partnership, S corporation, or trust which is attributable to unrealized appreciation in the value of collectibles shall be treated as gain from the sale or exchange of a collectible. Rules similar to the rules of section 751 shall apply for purposes of the preceding sentence.