Documented & confirmed (Leroy Thompson) CIA presentation knife for the Special Forces and MAC-V-SOG personnel they used in the Phoenix Program and the Provincial Reconnaissance Units. It is similar to the OSS knife and scabbard from WW2, presumably since the OSS was the CIA predecessor? The blade is engraved with the CIA seal and reads "CENTRAL INTELLIGENCE AGENCY" "VIETNAM". The scabbard varies in that it has straps for leg wear. The O-ring and nylon straps have been replaced. I will include several orders, citations, letters, etc. showing the soldier's assignment as advisor. He is listed in the Jan 67 Green Beret magazine and I will include a photocopy. I also have a similar non-presentation field knife listed from the same man. The Provincial Reconnaissance Units of the CIA's Phoenix Program were responsible for locating and eliminating VC and NVA agents and collaborators hidden among the Vietnamese "Civilians".