0
Yes, the UH-1 Iroquois (Huey) had a jet engine. See the Bell UH-1 Iroquois website for for details.
1-2million dollars
The Navy does, but the Marine Corps still uses twin engined variants of the UH-1 Iroquois. The latest model developed was the UH-1Z.
For a quality answer, take a look at the Bell UH-1 Iroquois website.
GI steel helmets with graffiti written on them and the Huey helicopter (UH-1 Iroquois).