| 1. Officer of the Pay Corps with the rank of Rear Admiral |
| 2. Naval Constructor with the rank of Captain |
| 3. Professor of Mathematics with the rank of Lieutenant |
| 4. Civil Engineer with the rank of Commander |
| 5. Chaplain with the rank of Commander |
| 6. Dental Surgeon with the rank of Lieutenant, Junior Grade |
U. S. Navy. Officers’ insignia of rank and Corps on collar
of blue service coat, showing right side of collar
| 1. Chief Boatswain and Boatswain |
| 2. Chief Sailmaker and Sailmaker |
| 3. Chief Gunner and Gunner |
| 4. Chief Pharmacist and Pharmacist |
| 5. Chief Machinist and Machinist |
| 6. Chief Pay Clerk and Pay Clerk |
| 7. Chief Carpenter and Carpenter |
| 8. Mate |
Sailmaker—a diamond embroidered in gold.
Pharmacist—a caduceus embroidered in gold.
Pay Clerk—an oak sprig of three leaves and three acorns embroidered in gold.
Mate—a binocular glass, embroidered in gold for a Mate of less than twenty years’ service and in silver for a Mate of over twenty years’ service.
Chief Boatswains, Chief Gunners and Chief Machinists, being Line Officers, wear the gold star above the sleeve stripes; while Chief Carpenters, Chief Sailmakers, Chief Pharmacists and Chief Pay Clerks, being Staff Officers, do not wear the star on the sleeve.
Boatswains, Gunners and Machinists, being Warrant Officers of the Line wear the gold star on the sleeve, but no stripes. Carpenters, Sailmakers, Pharmacists and Pay Clerks have the sleeves of the coat without decoration or insignia.