Interesting if minor discovery in my trench art shelf.
While reading the Devil's Paintbrush, recommended to me by the seller of my M1910.
Amongst the many inventions Hiram Maxim takes credit for is the Pom Pom, 37mm (one-pounder or 1.457") scaled up Maxim Navel deck gun.
A few years ago my daughter bought me a Pom Pom round for Xmas - it was in a junk shop, and is quite untouched.
I thought I'd put them together.
"...The Pom Pom name... ...as it was bestowed by African natives during the Boer war in onomatopoetic imitation of the gun's slow pounding rate of fire..." - The Devil's Paintbrush by Dolf L. Goldsmith.
*Photo's of M1910 to follow - at 165 pound pallet weight shipping it is moving slowly across the country.