Small iron cannon ball, lump and casting seam, cannonball projectile cast iron metal, cast Small iron cannonball Clear casting seam and cusp may be burr of casting or possibly rod or chain
Small iron cannon ball, reddish, cannonball projectile cast iron metal, cast Small iron cannonball. Exceptional round and slippery militaria war shooting navy shipping Stock Photo - Alamy
English Civil War Relief of Newark 1644 Iron Cannon Ball
Three cast iron cannon balls. Approximately 16 to 18cm diameter
Large iron cannon ball, casting seam, cannonball ammunition cast iron metal, cast Large iron cannonball. Circumferential casting seam militaria war shooting navy shipping Stock Photo - Alamy
Were cannonballs explosive or were they just projectiles? - Quora