Abstract: A system for assuring the proper identification of the hot face portion of a kiln liner or brick wherein the brick is supported and moved along a horizontal path in a specific physical orientation. A first sensing device serves to ascertain the orientation of the brick which, if correct, permits the brick to pass to a station at which point the brick receives an identifying paint mark or other identifying mark or label on its hot face portion. The marked brick then passes to a second sensing device which ascertains that the hot face has been properly identified.