Special Features:

Part is a small decal/label (identifies the illumination toggle), on the upper/lower housing assembly of a 8k mod 4 periscope system. Label is less than an inch x inch; part is currently in use with the us navy. In addition to the inscription of illum, the item also has a symbol to indicate the brightness in the form of a curved/arced line that gets thicker from left to right.

Properties:

A flexible item designed to be affixed to an object by adhesion or sewing to indicate contents, destination, or other similar identification. It may be blank with a surface designed for marking, preprinted, or have data woven into it. May be in roll form if perforations or markings are provided for detaching items of a specific length, or if separate labels are affixed to a continuous roll of backing material. Excludes marker, identification; plate, identification; tape identification; and tape, pressure sensitive adhesive.