Three (3) pinback badges. American. Circa 1940. Rare. One (1) "H. Park" employee ID, one (1) "Iron Mountain" ID and one (1) Willow Run "Guard" badge . The Iron Mountain badge appears to be in the shape of a model A grille. 1.5" x 1" to 3" x 2.5". The end of the pin on the Iron Mountain badge is broken off. $100-200. CODE-HISO. CODE-AUT