1. Gun Commander 2. Gun Pointer 3. Casemate Electrician 4. Chief Planter and Chief Loader 5. First Class Gunner 6. Second Class Gunner 7. First Class Observer and Plotter 8. Second Class Observer] These distinctive colors for the chevrons for noncommissioned officers of the various corps, departments and arms of the service are: Field Artillery and Coast Artillery scarlet. Cavalry yellow. Infantry white. Engineers scarlet piped with white. Ordnance black piped with white. Hospital Corps maroon piped with white. Quartermaster Corps buff. Army Service Detachment, U. S. Military Academy green piped with white. Army Service School Detachment green. The chevrons for the service coats, the overcoat and the olive-drab shirt are of the same size and design as those for the dress coat except that they are made of olive-drab material, the shade being slightly darker than that of the coat. There are also a number of special badges to designate certain men assigned to special duties, such as cook, chief mechanics, artificer, farrier, saddler, horseshoer, first and second class gunners, electricians, engineer, gun commander and gun pointer. These special badges are of the same color as the chevrons and are worn in the same manner. The chevrons and special badges for the different ranks and duties in the various corps, departments and arms of the service are as follows: