Good luck with this.... Paragraph 29-12 of AR 670-1 29–12. Wear of appurtenances Appurtenances are devices affixed to service or suspension ribbons, or worn in lieu of medals or ribbons. They are worn to denote an additional award, participation in a specific event, or some other distinguishing characteristic of an award. The following appurtenances are authorized for wear on decorations, medals, ribbons and other awards, when authorized by appropriate authority. When more than one appurtenance is worn, soldiers will ensure all devices are centered on the ribbon. (See AR 600–8–22 for additional information.) a. Oak leaf clusters. (1) A bronze twig of four oak leaves with three acorns on each stem is worn to denote award of second and succeeding awards of decorations (other than the Air Medal), the Army Reserve Components Achievement Medal, and unit awards. A silver oak leaf cluster is worn in lieu of five bronze oak leaf clusters. It is worn to the wearer’s right of a bronze oak leaf cluster and to the left of the “V” device. Oak leaf clusters, 5/16 inch in length, are worn on service ribbons, the suspension ribbon of miniature medals, and unit awards. Oak leaf clusters, 13/32 inch in length, are worn on the suspension ribbon of full-size medals. Oak leaf clusters 5/16 inch in length, joined together in series of two, three, and four clusters, are authorized for optional purchase and wear on service ribbons and unit award emblems. Personnel wear oak leaf clusters centered on the service ribbon and suspension ribbon, with the stems of the leaves pointing to the wearer’s right. If four oak leaf clusters are worn on the suspension ribbon on either full-size or miniature medals, the fourth one is placed above the middle one in the row of three. No more than four oak leaf clusters can be worn side-by-side on service ribbons. (2) If the number of authorized oak leaf clusters exceeds four and will not fit on a single ribbon, a second ribbon is authorized for wear. When the second ribbon is worn, it is placed after the first ribbon; the second ribbon counts as one award. Personnel may wear no more than four oak leaf clusters on each ribbon. If the receipt of future awards reduces the number of oak leaf clusters sufficiently (that is, a silver oak leaf for five awards), personnel will remove the second ribbon and place the appropriate number of devices on a single ribbon. b. “V” device. The “V” device is a bronze block letter, “V,” 1⁄4 inch high. It is worn to denote participation in acts of heroism involving conflict with an armed enemy. The “V” device is worn centered on the suspension ribbon and service ribbon on the Air Medal, Bronze Star Medal, Army Commendation Medal, and the Joint Service Commenda- tion Medal. Not more than one “V” device is worn on a ribbon. When worn with an oak leaf cluster or numerals, the “V” device is worn on the wearer’s right. c. Numerals. Arabic numerals, 3/16 inch in height, are issued in lieu of a medal or ribbon for second and succeeding awards of the Air Medal, Army Reserve Components Overseas Training Ribbon, the Overseas Service Ribbon, the Multinational Force and Observers Medal (MFO), and with succeeding awards of the “M” device with the Armed Forces Reserve Medal. The ribbon denotes the first award, and numerals starting with the numeral 2 denote second and subsequent awards. The numeral worn on the NCO Professional Development Ribbon denotes the highest level of NCO development, as followsribbon=the primary course; 2=basic course; 3=advanced course; 4=U.S. Army sergeants major academy course completion, or equivalent level training approved by HQDA.) The numerals are worn centered on the suspension ribbon of the medal or the ribbon. (See para i, below, for placement of a numeral with the “M” device.)