Lamp

From Rationale Divinorum Officiorum: 

"The lamp, according to the word of the Lord, is a good intention... We should not put a lamp under a bushel but on top of a candlestick, because if we have a good intention we should not hide it, but put our good work in the light of day and show its example for others to see."[1]

This Christian reading of a lamp manifests clearly in the third image: the lamp with a cruciform handle. 

---

[1] Durand, Guillaume, and Thibodeau, T. M. The Rationale Divinorum Officiorum of William Durand of Mende : (a New Translation of the Prologue and Book One). Records of Western Civilization. New York: Columbia University Press, 2007, 29.