Rare Antique Brass Horizontal Moving-Magnet Galvanometer GPO Pattern Reid Bros
Rare Antique Brass Horizontal Moving-Magnet Galvanometer GPO Pattern Reid Bros. This is an extremely rare piece of early telegraphic technology, more usually found in museum collections. There is no makers mark but it is likely to have been made by Reid Brothers of London c. These galvanometers were used to test current strength through the earliest transatlantic telegraph cables. This particular piece has an engraved name and number on the underside, possibly relating to the engineer who owned it (see photo). The main housing is solid brass with two viewing windows of beveled glass, the top glass being 4mm thick. Interior appears to be fine, copper coils are complete and attached to connectors, needle moves freely. Top glass is very good with two pin-point sized chips to edge and minor surface scratches, side glass has chipped near the bottom of the frame and a crack running vertically to the top but is being held in place by the brass frame. There is general wear and scratching to the brass from use and some tarnishing. The item "Rare Antique Brass Horizontal Moving-Magnet Galvanometer GPO Pattern Reid Bros" is in sale since Monday, November 11, 2019. This item is in the category "Antiques\Science/Medicine\Scientific Instruments". The seller is "robogal" and is located in Leeds. This item can be shipped to all countries in Europe, North, South, or Latin America, all countries in continental Asia, Australia.
- Period: 1800 to 1900
- Material: Brass
- Type: Galvanometer