WHISTLE USN TYPE FOR PFD WITH LANYARD
HM Order #: 100730
Developed by the U. S. Navy, this rugged U. S. C. G approved whistle facilitates locating overboard victims. The loud, shrill, dual tone is audible from great distances. Should be attached to all life jackets, rafts, and foul weather gear. It is required by the S. O. L. A. S.