{"product_id":"voltmetre-ancien-f-guerpillon-cie-montrouge-boitier-noir-vintage-appareil-mesu","title":"Vintage F. Guerpillon \u0026 Cie Montrouge antique voltmeter, black casing, measuring device","description":"\u003cp\u003e\u003cb\u003eAFW - Antique France Worldwide\u003c\/b\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eDescription\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThis antique analog dial voltmeter is signed \"F GUERPILLON \u0026amp; CIE, Montrouge (Seine)\", a French brand specializing in electrical instrumentation. The device comes in the form of a rectangular black casing with rounded corners, with a glass front revealing a large graduated scale from 0 to 250 volts. The thin, black needle is mounted on a central axis and currently rests on the zero mark.\u003c\/p\u003e\n\n\u003cp\u003eThe dial shows a uniform ivory-yellow patina, marked with a few stains and traces of wear, testifying to the object's age. The numbered graduations are clear, with a clear indication of the \"V\" symbol in the center, confirming the voltage measurement in volts. Technical mentions and electrical symbols are also printed on the bottom left of the dial, including a star, as well as a \"25\" marking and visible standardized symbols.\u003c\/p\u003e\n\n\u003cp\u003eThe black casing, with a shiny appearance, has a flat and smooth surface, with some visible scratches and traces of use, typical of industrial measuring instruments from past decades. No buttons, knobs, or connectors are visible on the front. The reading window is wide, slightly curved, offering good visibility of the entire dial and the needle.\u003c\/p\u003e\n\n\u003cp\u003eThe ensemble exudes a sober industrial aesthetic, characteristic of scientific instruments from the mid-20th century. The typography used for the inscriptions and numbers, as well as the mention \"Montrouge (Seine)\", allows the object to be placed in a period prior to 1968 (date of the change of name of the Seine department), which reinforces its vintage authenticity.\u003c\/p\u003e\n\n\u003cp\u003eThe manufacturer's signature \"F Guerpillon \u0026amp; Cie\" is clearly legible, which will facilitate any research or additional documentation on the origin and history of this electrical measuring device. This type of voltmeter was commonly used in laboratories, workshops, or industrial facilities for controlling electrical voltage.\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eCondition\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eUsed item sold as is. Shows visible signs of wear on the front, some scratches on the black casing, and a marked patina on the dial. The needle and inscriptions are clearly visible. Untested, sold as photographed.\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eDid you know?\u003c\/b\u003e\nThe manufacturer F Guerpillon \u0026amp; Cie, based in Montrouge, was one of the historical players in electrical instrumentation in France in the 20th century. Analog dial voltmeters like this one were essential in industry and education before the widespread adoption of digital multimeters.\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eAFW Reassurance\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eFast shipping and careful packaging by a professional seller specializing in antique technical objects.\u003c\/p\u003e\n\n\u003cp\u003e\u003ci\u003eKeywords: analog voltmeter, electrical measuring device, F Guerpillon Montrouge, vintage voltmeter, antique scientific instrument, voltage indicator, retro dial, black casing, industrial voltmeter, voltmeter France, antique instrumentation, electrical control device\u003c\/i\u003e\u003c\/p\u003e","brand":"AFW","offers":[{"title":"Default Title","offer_id":54425641615687,"sku":"52728-d681faec-a4fb-4e15-9d87-0f602de37230-PA6.31","price":20.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0989\/5152\/8775\/files\/s-l1600_baebdfad-f523-4016-8903-bbc48f141d9a.jpg?v=1785004668","url":"https:\/\/shop.antiquefranceworldwide.com\/en\/products\/voltmetre-ancien-f-guerpillon-cie-montrouge-boitier-noir-vintage-appareil-mesu","provider":"AFW","version":"1.0","type":"link"}