German Made - 象限儀 - 黃銅 - 1910-1920 - 炮兵炮手象限 - 大约 1918 年

这件黄铜仪器是德国炮兵倾角计或炮手象限仪（常被称为 Winkelmesser der Artillerie）。
This precision leveling instrument was used by field artillery crews to accurately measure and set the launch elevation angles for heavy artillery pieces and howitzers.
这件精密水平仪由野战炮兵部队使用，用于准确测量并设定重炮和榴弹炮的发射仰角。
Features crisp, deeply engraved German military text including Gradteilung (Degree Graduation) along the curved arc and Ausschaltung 1/16 along the lower adjustment base plate.
刻有清晰、深刻的德军文本，包括曲弧上的 Gradteilung（度分刻度）以及下方调节底板上的 Ausschaltung 1/16。
Stamped with the highly desirable F.L.S. inspector mark, indicating official military proofing and acceptance at the famous Feuerwerkslaboratorium Spandau (Spandau Ordnance Laboratory).
盖有广受追捧的 F.L.S. 检验标记，表示经官方军事检验并在著名的 Spandau Feuerwerkslaboratorium（Spandau 弹药/军械实验室）验收。
Spirit Level: The internal glass spirit level bubble vial is entirely intact, unbroken, and functional.
水平仪：内部的玻璃气泡管完好无损，未破裂，功能完好。
Based on the manufacturer's mark this instrument dates to the World War I era, specifically around 1918.
根据制造商的标记，该仪器可追溯到第一次世界大战时期，具体约为 1918 年左右。
The quadrant is in good condition and has smooth movement with some corrosion to the knobs but they turn easily.
该象限仪状态良好，运行顺畅，旋钮有些腐蚀，但转动仍轻便。