Waterbury Clock Co., C.1909, PEARL model "night clock", 30 hour back wind / set timepiece with an opalene [glass] dial, with gilt cast bezel and bracket to set on a gas burner (or to set as a strut on the mantel). With your gas lamp set on low, you had a nite lite and the visible time when you got up before day break. overall good original condition and a nice example of this model; no cracks nor chips; minor paint loss on numerals. See Ly's Waterbury book, page 486, fig 1819. Price guide for 2001 = $225. Ht 5.5"