An elegant demonstration ammeter by Hartmann & Braun, Frankfurt am Main , an early 20th-century electrical measuring instrument. Mounted on a curved, varnished mahogany base, it features a large circular dial with a fine pointer, encircled in gilt brass, and graduated from 0 to 10 amps. The interior reveals the textile coil and pivot system, evidence of high-precision scientific manufacturing. Possessing a rare aesthetic presence, this instrument combines technical rigor with decorative beauty.
✦ Origin: Germany ✦ Estimated period: Circa 1900–1920 ✦ Dimensions: Height 40 cm - Base: 25x20cm ✦ Material: Wood, brass, steel, glass ✦ Condition: Very good overall condition, slight wear to the wood varnish, impeccable glass and dial, original textile coil and connectors retained.
A beautiful scientific instrument that is both decorative and educational – perfect for a cabinet of curiosities or a collection of antique physics equipment.
