Bosun's Whistle Brass & Copper Boatswains Pipe with Storage Box British Admiralty pattern Boatswain's Pipe or Call (Bosun's Whistle). Copper & Brass with an 83cm brass chain (32 inches) Ideal for Sea Scouts or Cadets. The whistle comes in a anchor inlaid indian rose wooden box. This boatswain whistle will make a great nautical collector's piece. Size in Inches:4.5" chain size:15.5" Box size:5.25X1.75X1.25" Weight: Kilos: 140grm.approx. Directly from the Manufacturer via Traceable air Courier Service.