The top unscrews to reveal a fitted petrol lighter insert, still intact, though untested. Due to this mounting, any original casing markings on the bottom of the shell are not visible. The Hotchkiss 25mm projectile was fired from the Hotchkiss revolving cannon, a rapid-fire weapon used by French, British, and other forces in naval and colonial operations during the late 19th and early 20th centuries.
