MARQUETTE — Everyone is invited to the Marquette Maritime Museum at 1 p.m. Sunday — Coast Guard Day — for a Lyle gun demonstration.

A Lyle gun is a short-barreled cannon designed to fire a projectile attached to a rope to a boat or victim in distress. This line-throwing gun, invented by First Lieutenant David A. Lyle, were used from the late 19th century to 1952, when they were replaced by rockets for throwing lines. The Lyle Gun could shoot the projectile about 700 yards, although in actual rescues the practical range was much less. This event is weather permitting. Call 906-226-2006 for more information.