1967 dated OG107 shirt,tailored short sleeves N.S.A.D Cua Viet Vietnam patch.

Not sure if original,would be nice if it was

Has name on rear tail and same name on left pocket flap in black marker pen.

These patches used to be available for many years from the big patch dealers at shows. There were a huge amount of these sold off as over runs by the manufacturer. Had never seen one on a uniform until after they all appeared on the market.

So more than likely a put together?