curio; rare article; collector's item
Refers to a rare, unusual, or valuable object, often with artistic or historical interest. Used in contexts like antiques, art, or specialty goods.
Many rare articles are on display at this antique fair.
His collection features curios gathered from around the world.
That pot is treated as a rare curio.
He collects rare curios from all over the world.
I discovered a rare curio in the storehouse.