Origins of the Twenty-One Gun Salute

Opinion: Great guns! The origin of the 21-gun salute - The Globe and Mail

21-gun salute, Military Wiki

West Saint Paul Antiques

West Saint Paul Antiques

Do they always use blanks in a twenty-one gun salute? - Quora

Rifle volleys and gun salutes

Gun History: Origin Of The 21 Gun Salute

21-gun salute tradition: The history and significance

How do soldiers hold their rifles when they are saluting? - Quora

21-gun salute - Wikipedia

West Saint Paul Antiques

The Rudder Newsletter Vol. 6, Iss 9, September 2018 : U.S. Navy

Firing Three Volleys at a Military Funeral - Taps Bugler: Jari Villanueva

Why A 21 Gun Salute? - The Lodge at AmmoToGo.com

Why the number “21” in a 21 Gun Salute? - Quora