oddity, commonplace, rareness, norm, novelty, de rigueur, throwback, impressiveness, staple, characteristic, occurrence, abundance, peculiarity, phenomenon, allure, occupational hazard, epitome, crapshoot, vogue, handful, regularity, unobtrusiveness, hallmark, truism, misnomer, rara avis, afterthought, unpretentiousness, redpoll, gem, polydactylism, bizarreness, jewel, necessity, plenitude, oxymoron, unusualness, feat, cachet, ubiquitousness, commonness, scarceness, quotability, superfetation, fickleness, provenance, anathema, distinguishing characteristic, briefness, paucity, curio, unimportance, timelessness, unsung, unpredictability, significance, dearth, impossibility, plentitude, lilliputian, heyday, uniqueness, delicacy, evenness, incongruity, gaudiness, tameness, dicey, puniness, infrequency, sumptuousness, denseness, anachronism, reverence, predominance, sparseness, untalked, ivory gull, renown, basset horn, trappings, formality, headiest, mintage, compactness, ubiquity, holy grail, byword, exception, grandness, unlike, relative, ordinariness, spryness, changeability, pastime, quirkiness, mystique, anomaly, enigma, trait, priciest, rarities, cheapness, fineness, largeness, originality, aptness, brilliancy, lack, pertinence, scarcity, smallness, closeness, improbability, lightness, richness

collector's item, piece de resistance, showpiece

antique

density, stuff, sundries, sundry, whatchamacallit, whatsis

curiosity, low density, oddment, tenuity