period piece(n = noun.artifact) Array - any work of art whose special value lies in its evocation of a historical period; Array
is a kind of work of art

alabama period, by the piece, cambrian period, carboniferous period, catskill period, champlain period, chemung period, chess piece, class period, conversation piece, cretaceous period, devonian period, duty period, fertile period, fifty-cent piece, final period, first period, fowling piece, geological period, gestation period, glacial period, gold piece, hamilton period, historic period, historical period, incubation period, jurassic period, knee piece, latency period, latent period, lower carboniferous period, lucky piece, lunar time period, lunch period, masking piece, missippian period, museum piece, neonatal period, niagara period, one piece, orbit period, ordovician period, overtime period, pennsylvanian period, period, period of play, period of time, period style, permian period, piece, piece de resistance, piece goods, piece of ass, piece of cake, piece of cloth, piece of eight, piece of furniture, piece of ground, piece of land, piece of leather, piece of material, piece of music, piece of paper, piece of tail, piece of work, piece of writing, piece together, playing period, precambrian period, quaternary period, reconstruction period, refractory period, rest period, safe period, salina period, second period, set piece, silurian period, tertiary period, test period, think piece, third period, time period, trenton period, trial period, triassic period, twenty-four hour period, upper carboniferous period