The candleflame and the image of the candleflame caught in the pierglass twisted and righted when he entered the hall and again when he shut the door. - from All the Pretty Horses by Cormac McCarthy (1992).
a tall narrow mirror, usually set between two windows, above a pier table
Hyphenation
a tall nar·row mirror, u·su·al·ly SET be·tween two windows, a·bove a pier ta·ble