The�Marine organization guidon is always rectangular, a guidon shall be made of red wool bunting upon which insignia, letters. and numbers, as required, of gold wool bunting shall be sewn on each side. This guidon shall measure 1.83 feet on the hoist and 2.33 feet on the fly. A Marine Corps emblem consisting of eagle, globe, and anchor made of gold wool bunting, shall be placed in the center of each side of the guidon. Guidons will always have regimental numbers/letters in lower left and lower right corners. Lettering and numerals appear on both sides of the guidon, reading from left to right on both sides.