ClipArt ETC
"Astatic galvanometer, an instrument which consists of a pair of similar needles magnetized, with their poles turned opposite ways, and stiffly connected at their centers, so that both will swing together." -Whitney, 1911

Astatic Galvanometer

"Astatic galvanometer, an instrument which consists of a pair of similar needles magnetized, with their…

"Needles and pins, chiefly aken from originals in bronze, vary in length from an inch and a half to about eight inches." — Anthon, 1891

Needles and pins

"Needles and pins, chiefly aken from originals in bronze, vary in length from an inch and a half to…