A GERMAN ZISCHÄGGE, MID-17TH CENTURY with hemispherical one-piece skull embossed with six radiating ribs, fitted at its apex with a transversely-pierced finial and circular washer, at the brow with a flat ogival peak pierced at the rear with a rectangular hole to accommodate a later sliding nasal-bar and secured at the brow by a rectangular staple and locking-screw (the peak pierced for display purposes), fitted at the nape with a slightly flaring, obtusely-pointed neck-guard of four upward-overlapping lames, (cheek-pieces missing), the main edges of the helmet formed with plain inward turns (areas of light pitting and patination) 28.5 cm; 11 1/4 in high