Good Conduct Medal, Coast Guard, type 1 with enlistment bars

The Good Conduct Medal is one of the oldest military awards of the United States Armed Forces. The U.S. Navy's variant of the Good Conduct Medal was established in 1869, the Marine Corps version in 1896, the Coast Guard version in 1923, the Army version in 1941, and the Air Force version in 1963; the Air Force Good Conduct Medal was discontinued from February 2006 to February 2009.
The medal is awarded to any active-duty enlisted member of the United States military who completes three consecutive years of "honorable and faithful service". Such service implies that a standard enlistment was completed without any non-judicial punishment, disciplinary infractions, or court martial offenses. If a service member commits an offense, the three-year mark "resets" and a service member must perform an additional three years of service without having to be disciplined, before the Good Conduct may be authorized.
The Coast Guard Good Conduct Medal was designed in 1923 and originally used enlistment bars as attachments, in the same manner as the Marine Corps and Navy Good Conduct Medals. In 1966, the Coast Guard began using bronze and silver 3/16-inch service stars to denote additional awards of the Coast Guard Good Conduct Medal.