I did not label mine and no mention of such a label ever came up in the inspection. Some of the guys that have Air Force paint schemes have "emergency release" or similar painted on the outside. But in looking at Doug Reeves' "Flash"
http://www.vansairforce.net/virtual_tour_n617ar.htm I don't see any on his. One of the pictures shows his interior latch too and it appears to be unlabeled. There are several Pictures of planes in the model specific area so you may want to surf that area for ideas. I have never seen a Cessna with "Door Latch" emblazoned on the area of the door latch (or maybe I never noticed

) You could label the pull out handle with a stick on label that has an arrow and note saying "Open" and point the arrow in the direction of movement when the handle opens. Once inspected sometimes these things fall off (unintentionally of course)
