Below is the information describing a USMC Guidon as in MCO 10520.3
The organization guidon shall be made of red polyester cloth upon which insignia, letters, and numbers, as required, of gold polyester cloth shall be sewn on each side. This guidon shall measure 1.83 (22") feet on the hoist and 2.33 (28") feet on the fly. A Marine Corps emblem consisting of eagle, globe, and anchor made of gold polyester cloth, shall be placed in the center of each side of the guidon. The emblem shall measure approximately 8 1/2 inches from tip to tip of the eagle's wings, globe 5 1/2 inches in diameter, and anchor 11 inches overall. A maximum of 22 letters, numerals or spaces will be used on the guidon and this must be consistent in size;
1 number/letter = 6 inches;
2-3 letters/numbers = 4 1/2 inches;
4 or more letters/numbers = 1 3/4 inches.
Numerals preceding letters will be 4 1/2 inches, (i.e., 4 LEB MD). The 4 will be 4 1/2 inches, while "LEB" will be 1 3/4 inches. The "Det/MD will be 1 3/4 inches.
Guidons will always have the higher organizations numbers/letters in lower left corner and the company identifier in the lower right corners as indicated . There is only one type of organizational guidon used by Marine Corps organizations:
The Type II is the only authorized guidons. The guidon shall consist of the Marine Corps emblem on an arc having a radius of 60 inches, for all Marine Corps units and organizations. The designation USMC of single block type, 4 inches high, shall be centered above the Marine Corps emblem on an arc having a radius of 60 inches. The organization number shall be placed on a line between the crown of the anchor of the Marine Corps emblem and the lower left corner of the guidon, and the company designation letter, abbreviated title, or number in a corresponding position at the lower right of the guidon. When deemed necessary for explicit identification, the abbreviated designation of an intermediate organization may be shown directly above the designation of the parent organization.
USMC Guidon Flag Made to order.
