黑白復古騎士頭盔雕刻，細節刻畫通風口與頸甲

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A centered black-and-white vintage ink illustration of a medieval knight’s helmet and upper neck guard, shown as a bust on a plain light gray background with lots of negative space. The helmet is angled slightly to the left in three-quarter view, with a rounded domed top, a narrow horizontal visor slit, and a faceplate featuring 6 vertical ventilation slits. Include a riveted gorget with visible metal studs and a draped cloth or cape falling over the right shoulder. Render it in an engraved woodcut or etching style with bold black outlines, dense stippling, scratchy crosshatching, and high contrast shading, like an old heraldic emblem or antique book illustration. Clean isolated composition, no text, no border, no additional objects.