Wether or not the Centurio really used a whistle to relieve the ranks is of course, pure conjecture. Whistles have been found at all manner of ancient sites, so anything is possible. Our whistles are made from bone. They have two pitches and a leather carry/neck strap. Each features an inlaid bone design to complete the peice. Very nice addition to your kit weather you use it to call you dog, or command your troops!
SOTW Roman Centurio Horn Whistle