Wartime, Thailand (Thai) hand embroidered, Military Assistance Command Vietnam Studies and Observation Group (MAC V SOG), Command and Control North (CCN), Recon Team Idaho, 2nd generation patch. This exact piece is featured in the book: US ARMY SPECIAL FORCES INSIGNIA OF THE VIETNAM WAR, THE MAC V SOG RECON TEAMS, page 178 center picture. A great, rare piece to find. (inventory number APCI-1036)