Field Artillery.—Two field guns of gold crossed with the number of the regiment in the angle above them.
Coast Artillery.—Two gold cannons crossed, surmounted at the center by an oval of red enamel with a gold projectile point up.
Infantry.—Two gold rifles crossed with the number of the regiment in the angle above them.
Philippine Scouts.—The same as for infantry but with the letter “P” in the angle above the crossed rifles.
Porto Rico Regiment.—The same but with the letters “P. R.”
Aides-de-camp.—A shield of the United States surmounted by a spread eagle of gold, the stripes of the shield red and white and the field blue enamel with gold stars, the number of which correspond to the rank of the General officer upon whose staff the aide-de-camp is serving.
Regimental Staff Officers.—Regimental adjutants and quartermasters have the devices of the insignia of the Adjutant General’s Department or of the Quartermaster Corps respectively in the angle below the insignia of their arm of the service.
Veterinarians.—An insignia consisting of a caduceus surcharged with the letters V. C.
Assistant Inspectors of small arms practise for regiments of the Organized Militia wear the insignia of the arm of the service to which the regiment belongs with the number of the regiment above it and a bursting shell below it.
Officers’ Buttons.—The design for Engineers is an eagle with the motto “Essayons” above a fort and rising sun, and for other officers it is the U. S. coat of arms.