A Boatswain's Whistle would be pretty gnarly : r/Seaofthieves
Chinese Export Bosun's Pipe or Call Ca 1850 | Land and Sea Collection
What is the weird whistle voice we hear on the naval ships? - Naval Post- Naval News and Information
Mil-Tec by Sturm Nickel Plated Boatswain Whistle
Pauline's Pirates & Privateers: Tools of the Trade: Pipe To
The Boatswain's Pipe (or Whistle) Calls
Grey Funnel Line - Boatswain's Call A boatswain's call is a whistle used on naval ships by a boatswain. It is pronounced, and sometimes spelled, " bosun's call". The use of the boatswain's