The CLG 20379 power supply is part of the MAR radio CRV - 43067 transmitter / receiver navy radio set up , the power supply has a 4 pin  input jack   with a choice of  A B C and D .  posts  B and D are for 115 v / 230 v AC , the installation manual does not clarify which post is HOT and which post neutral , I've spent a long time on the internet only to find conflicting information on the choice  of  B or D for the " hot " 115 v AC  wire which will be house current . I realize there are fuses but thats not the point  i need to get it right the first time without incident 

Great find. The helmet is a Hungarian M50 which was one of the models commonly used by the PAVN and the 48th Regiment regularly used helmets, including during the 2 February 1968 attack on Cam Lo district headquarters as well as during the battle of Dai Do.   

Here are the pictures, its got the graffiti on the back of the vest. The punsisher skull graffiti has been on there since I bought the vest from the national guard guy.  

Exactly so. As long as you could use it to light your smokes the rest didn’t really count. 

Can anyone tell me the era of this 26th Infantry Regiment patch? 

I'm not sure what the production line of these looked like, probably one of millions made. I did notice that the ''Extra flint'' is rather light on the strike, so it could of actually worn off. Or another more plausible explanation is process elimination to speed up production. At the end of the day, I doubt anyone cared what brand was on it just as long as it did what it was designed to do. 

Huh, a little mystery as to why no manufacturer’s name, but perhaps during wartime that went “by the board”, Manky bandage. Still pretty danged close to mint! Nice score!

Now there's an  obscure unit, first time hearing of it The U.S. Army Special Forces—Walter Reed Army Institute of Research Field Epidemiologic Survey Team (Airborne), often abbreviated as WRAIR-FEST Co F, was a specialized unit formed in late 1965. It focused on field epidemiology and research in support of specialized operations, combining medical research capabilities with airborne-qualified Special Forces personnel.   This from ASMIC on Facebook,   F.E.S.T. 1965-68 The United States Army Special Forces Walter Reed Army Institute of Research Field Epidemiological Survey Team (Airborne) was formed in late 1965 and later deployed to Vietnam in 1966. Funded by Walter Reed Army Institute of research and staffed by highly trained Special Forces qualified medical personnel from Fort Bragg, North Carolina. The team was attached to the 5th Special Forces Group Airborne, while in Vietnam. During its short existence, the team conducted extensive and imported field studies on diseases of military medical importance often under combat conditions from 1965 to 1968. This group was only 40 men strong spare Authorization of 26 personnel. Salk positions called for Special Forces Qualification and Training.

Is that for sale?

Hahahah thanks Ken. I love those jeeps you posted.