An early Victorian Royal Navy silver Bosun's whistle, as follows;
Royal Navy insignia to both sides of the pipe bowl, long reed decorated with bar stripes.
The paddle is simply engraved on both sides, one side has a vacant central cartouche section, the other side bares a full set of silver hallmarks, for Birmingham, a young Victoria head, 1856 and a makers mark for Owen & Boon.
(The British Royal Navy was at the peak of it's power during the C19th, and was involved in campaigns all around the world).
This Bosun's whistle measures approx 13cm long and weighs approx 14g, and is still in working order.