This shirt first appeared in 1952 as a follow-up to Herringbone twill (HBT) overalls. This version with sleeve forks was released between 1964-1975 and served for a long time. It is also the final evolution of the OG107 shirt. It is characterized by sleeve forks, pointed pockets, and a right-angle hem. The satin cotton fabric is still used. Although the OG507 after 1975 has the same appearance, it uses a cotton-polyester blended fabric.

• Shoulder sleeve insignia on both arm.
• Two pockets on chest. 'Im Jin Scouts' patch on the right chest, and the 'U.S. ARMY' branch tape above the left pocket.
• Long sleeve shirt.
• 10.5 oz cotton satin fabric.
• Machine wash cold, tumble dry low.