Unused card of Tricholoma matsutake, captioned briefly in Korean and English, with a very large pre-printed postage of similar design.  Matsutake is the common name for a highly sought-after mycorrhizal mushroom that grows in Asia, Europe, and North America. It is prized in Japanese, Korean, and Chinese cuisine for its distinct spicy-aromatic odor.  Not to mention its shape.  Grade: 1