This item comes from an estate in Colonial Williamsburg Virginia of a long time Hudson and early 20th century automobiles. Or Sale: 1898 WESTON Model R Meter (Volts & Amperes) used for Electric Automobiles. Untested, operating condition unknown, used condition as is.
The covers securing screws are missing so the cover comes off without having to be mechanically removed. The scale face is held on with a paperclip but could be reattached with adhesive if desired. Here is a rare Duplex meter (Voltmeter and Ammeter in one case) that Weston Electrical Instrument Company of Newark, NJ introduced with their 1898 Design Patent No. This meter is described in Issue #131 of the Telephone Magazine and apparently came in two versions: Model R which had an aluminum case, and the Model T which had a cast iron case.
The Telephone Magazine article describes the Model R as being waterproof and having meter bearings made of sapphire the lightness of the aluminum case makes it suitable for electric vehicles. This type of meter may have been used in other electric automobiles in the 1900 to 1920 timeframe or in other places where volts and amperes needed to be measured. The item "RARE 1898 WESTON Model R Meter (Volts & Amperes) for Antique Electric Automobile" is in sale since Sunday, November 29, 2020. This item is in the category "Antiques\Science & Medicine (Pre-1930)\Scientific Instruments\Other Antique Science Equip". The seller is "kwood93449" and is located in Seaford, Virginia. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Dominican republic, Panama, Trinidad and tobago, Guatemala, El salvador, Honduras, Jamaica, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Viet nam, Uruguay, Russian federation.