ClipArt ETC
"Steel Armet, about A.D. 1450. A, calotte or cap; a, neck-guard riveted to A, and having a prolongation upward toward the crown; B, upper vizor, or umbril, with sight- or eye-hole; C, vizor with opening for breathing; D, aventaile, opening sidewise on hinges; E, rim of the sidewise on hinges; E, rim of the gorgerin (it has a groove between two ridges, which groove recieves the loer edge of the armet proper); F, one of two upright pins upon which the pauldrons are adjusted. The gorgerin is of three pieces, movable upon one another, and all riveted to a leather band beneath."-Whitney, 1902

Steel Armet

"Steel Armet, about A.D. 1450. A, calotte or cap; a, neck-guard riveted to A, and having a prolongation…