Special Features:

Engraved lens reads sonar; maj comp: housing 1, engraved lens 1, lamps 4, red filters 2, green filters 2, shaft actuator 1

Properties:

Two or more different types of items having a common mounting or mounted on each other which together forms a portion of a switch but which in itself is not a complete functioning item and cannot be assigned a more definite item name. See also switch section, rotary and contact assembly, electrical.