Rare Early Induction Coil Or Ruhmkorff Coil By Heinrich Daniel Ruhmkorff
Posted by admin On March 7, 2023
For sale an early original induction coil or Ruhmkorff coil by Heinrich Daniel Ruhmkorff. Comprised of a dark mahogany graduated base with a twelve-inch copper wound two-part coil with iron core and glass insulating circular end caps. At one end there are connections for the battery power source with a hand operated barrel switch to engage or disengage the battery power as required. The application of direct current to the inner winding causes the iron core of the coil to become magnetised which in turn effects a magnetic contact arm at the further end of the coil, namely the interrupter which rises and falls to continuously create and then break electrical contact. This motion has the effect of creating high voltage alternating current across the secondary coil which is then released via the two-pin spark gap provided on two upright insulated glass rods. Although unsigned, this example conforms in design to all known examples of Ruhmkorff’s early induction coils (ref images provided) and is undoubtedly from Ruhmkorff’s Paris workshop of the 1850’s. Very few extant examples seem to remain in existence and I can find just two of similar design which are held in museum collections. An extraordinarily rare and iconic instrument from the early industrialisation period of electricity. Heinrich Daniel Ruhmkorff was born in Hanover, Germany in 1803. Initially trained as a mechanical engineer in his birthplace under an engineer named Welhausen, Ruhmkorff first moved to Paris in the early 1820’s to work for a Physics lecturer but quickly moved to England to take up a position with the Bramah Company. Ruhmkorff had of course patented his first improvements to the induction coil in 1851 so it would seem that the rising popularity with which his invention was met would have been the catalyst for his decision albeit four years after the initial patent application. Despite common naming conventions for this instrument, the development of the induction coil began in the 1830’s following Michael Faraday’s 1831 investigations into what would ultimately become Faraday’s law of induction. Many prominent scientists developed upon Faraday’s work and there are conflicting accounts laying claim to the original inventor. Ruhmkorff’s claim related to the attention paid to the winding of the coil with copper wire, and numerous further refinements throughout the 1850’s led to the award of the Volta prize in 1858 by Napoleon III. Ruhmkorff died in 1877 and was buried in Paris. It is suggested that he died in a state of near poverty having donated most of his riches to scientific and charitable causes. An extraordinarily early and rare example of an induction coil from the workshop of this famous scientist. Jason Clarke Antiques are happy to discuss carriage, condition or for any other queries, alternatively, you can also message us and we will endeavour to come back to you as soon as possible. This item is in the category “Antiques\Science/Medicine\Scientific Instruments”. The seller is “jason750_1″ and is located in this country: GB. This item can be shipped to United Kingdom.
- Antique: Yes
- Type: Induction Coil
- Period: 1800 to 1900
- Material: Brass
Rare Antique Pewter Wine Funnel Attributed Late 18th Early 19th Century American
Posted by admin On March 7, 2023
Delicate pressed design to outer surface. Diameter: 12cm / Height: 11.5cm. This item is in the category “Collectables\Metalware”. The seller is “grahamtemple” and is located in this country: AU. This item can be shipped worldwide.
- Product Type: Wine Funnel
- Era: 1800s
- Material: Pewter
Roots Reggae Tape Jamaica 1978 Rare
Posted by admin On March 6, 2023
RARE EARLY 20th SMALLPOX VACCINATION SET NEAR COMPLETE
Posted by admin On March 6, 2023
Mint Condition but missing the watch glass. 2 metal cases each containing NEVER USED 20 hollow and 17 flat vaccinostyles. 1 case to hold very thin glass pipette. This item is in the category “Antiques\Science & Medicine (Pre-1930)\Medicine\Other Medical Antiques”. The seller is “lory4″ and is located in this country: US. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech Republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Greece, Portugal, Cyprus, Slovenia, Sweden, South Korea, Indonesia, South Africa, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, New Zealand, Singapore, Switzerland, Norway, Saudi Arabia, United Arab Emirates, Qatar, Kuwait, Bahrain, Republic of Croatia, Malaysia, Brazil, Chile, Colombia, Costa Rica, Panama, Trinidad and Tobago, Guatemala, Honduras, Jamaica, Barbados, Bangladesh, Bermuda, Brunei Darussalam, Bolivia, Ecuador, Egypt, French Guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman Islands, Liechtenstein, Sri Lanka, Luxembourg, Monaco, Macau, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Vietnam.
- Original/Reproduction: Original
- Time Period Manufactured: Pre-1930
- Maker: Blanzy-Poure
RARE SET8 ANTIQUE EARLY 19c RIDGWAY IRONSTONE CHINA POTTERY DINNER PLATES c1820
Posted by admin On March 5, 2023
RARE SET 8 ANTIQUE EARLY 19c RIDGWAY IRONSTONE CHINA POTTERY DINNER PLATES c1820. This is a lovely set as you can see from the photos. 5 are perfect and 3 have the extremely tiny chips shown in closeup towards the end of the photos. I have photographed each plate in turn, front then back, followed by a closeup of any defect. Do ask if you need any further information. Thanks for looking, Mick. THIS IS A WONDERFUL SET OF PLATES AND THE OVERGLAZE AND GILDED DECORATION IS OF VERY HIGH QUALITY AND IN VERY GOOD CONDITION WHICH HELPS ONE TO FORGIVE THE 3 or 4 TINY CHIPS. This item is in the category “Pottery, Ceramics & Glass\Other Pottery & Glass”. The seller is “dulverton-decor” and is located in this country: GB. This item can be shipped to United Kingdom.
- Origin: Britain
- Antique: Yes
- Pattern: Oriental
- Year Manufactured: 1820
- Material: Ironstone China
- Colour: Multicolour
- Vintage: Yes
- Brand: Ridgway
- Type: Plates
- Era: Georgian (1714-1837)
- Original/Licensed Reproduction: Original
- Theme: Oriental
- Style: Oriental
- Features: Date-Lined
- Production Style: Itonstone
- Time Period Manufactured: 1800-1849
- Production Technique: Pottery
- Country/Region of Manufacture: United Kingdom
- Backstamp: Printed And Incised
- Finish: Overglaze Painted Decoration
- Handmade: Yes
- Product Line: Ridgway
Rare antique Japanese miniature / model of a rickshaw, early 20th century
Posted by admin On March 4, 2023
This is a very finely made early 20th century Japanese model of a rickshaw with retractable hood in good condition. The highly detailed model which is almost entirely made from pieces of natural shell with the exception of the metal handles, wheel spokes, and brackets and pins that join the pieces of shell together. The hood comprises three overlapping sections. Dimensions: 17.5 cm length x 7 cm width. Condition: The condition given the delicate nature of the model is very good. It appears to be complete down to the two lights either side of the cab. Apart from being a little dirty there is just one crack in the shell, sitting behind the right-side light fitting (most visible on the last photograph – it’s the furthest light fitting). This item is in the category “Antiques\Asian/Oriental Antiques\Japanese\Other Japanese”. The seller is “123torr” and is located in this country: GB. This item can be shipped to United Kingdom, Austria, Belgium, Bulgaria, Republic of Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Australia, Bahrain, Japan, New Zealand, Israel, Hong Kong, Norway, Indonesia, Malaysia, Singapore, South Korea, Taiwan, Bangladesh, Brunei Darussalam, Guernsey, Gibraltar, Iceland, Jersey, Jordan, Cambodia, Liechtenstein, Sri Lanka, Macau, Monaco, Maldives, Oman, Pakistan, Saudi Arabia, United Arab Emirates, Kuwait, Philippines, Qatar, Vietnam, China, Switzerland, Thailand.
- Region of Origin: Japanese
- Country of Origin: Japan
- Product: Ornament
- Age: 1900-1940
- Primary Material: Shell
- Antique: Yes
- Sub-Type: Apprentice
- Original/Repro: Antique Original
Rare Antique 1920s Shelley China Bluebell vase 772 with Squirrel. Blue & White
Posted by admin On March 4, 2023
Rare Antique 1920s Shelley China Tall Bluebell vase with Squirrel. Does have a Small nibble on the base vut looks like it could have been done during manufacturing. Any questions please ask. Please see my other listings for more vintage and collectable ceramics. This item is in the category “Collectables\Decorative Collectables\Vases”. The seller is “johnsonfamilytrading” and is located in this country: GB. This item can be shipped to United Kingdom, Antigua and Barbuda, Austria, Belgium, Bulgaria, Republic of Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Australia, United States, Bahrain, Canada, Japan, New Zealand, China, Israel, Hong Kong, Norway, Indonesia, Malaysia, Mexico, Singapore, South Korea, Switzerland, Taiwan, Bangladesh, Belize, Bermuda, Bolivia, Barbados, Brunei Darussalam, Cayman Islands, Dominica, Egypt, Guernsey, Gibraltar, Guadeloupe, Grenada, French Guiana, Iceland, Jersey, Jordan, Cambodia, Saint Kitts-Nevis, Saint Lucia, Liechtenstein, Sri Lanka, Macau, Monaco, Maldives, Montserrat, Martinique, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Turks and Caicos Islands, Aruba, Saudi Arabia, South Africa, United Arab Emirates, Chile, Bahamas, Colombia, Costa Rica, Dominican Republic, Guatemala, Honduras, Jamaica, Kuwait, Panama, Philippines, Qatar, El Salvador, Trinidad and Tobago.
- Antique: Yes
- Size: Medium
- Year Manufactured: 1920
- Material: Bone China
- Subject: Butterfly
- Colour: Blue
- Brand: Shelley
- Type: Vase
- Era: Early 20th Century (1911-1940)
- Item Height: 9 in
- Theme: Flowers
- Style: Art Deco
- Original/Reproduction: Original
- Time Period Manufactured: 1920-1949
- Country/Region of Manufacture: United Kingdom
- Finish: Antique
- Item Width: 4 In
Tiffin Glass Co. Rare Cadena Mandarin Yellow Footed Coffee/tea Cup-mint
Posted by admin On March 3, 2023
Offered here a single, lovely & seldom seen Mandarin Yellow Cadena footed coffee or tea cup made during the 1930’s by Tiffin Glass Co. ! Measures 2″ tall & 4″ in diameter. No chips/cracks or repairs. Fantastic piece to add to any collection!! S & happy shopping! Please check my other listings for more great items. This item is in the category “Pottery & Glass\Drinkware & Barware\Drinkware”. The seller is “dishdaze” and is located in this country: US. This item can be shipped worldwide.
- Original/Reproduction: Antique Original
- Type of Glass: Elegant Glass
- Glassware Type: Elegant
- Glassmaking Technique: Etched
- Item Height: 2 inches
- Pattern: Cadena
- Type: Cup
- Color: Yellow
- Vintage: Yes
- Year Manufactured: 1933
- Origin: North America
- Occasion: All Occasions
- Brand: Tiffin Cadena
- Original/Licensed Reproduction: Original
- Time Period Manufactured: 1930-1939
- Shape: Round
- Country/Region of Manufacture: United States
- Style: The Great Depression
- Material: Glass
- Production Style: Elegant Glass
- Manufacturer: Tiffin
- Item Diameter: 4 inches
- Model: Mandarin Yellow Cadena Cup
Rare Early Antique John Esslemont Advertising Sign Tea Sets Free Golden Cup Tea
Posted by admin On March 3, 2023
RARE EARLY ANTIQUE JOHN ESSLEMONT ADVERTISING SIGN. TIN / METAL ADVERTISING SIGN. TEA SETS FREE WITH GOLDEN CUP TEA. IN ORIGINAL, UNCLEANED CONDITION, THE WAY IT WAS FOUND. MEASURES 74cm x 49cm. This item is in the category “Collectables\Advertising Collectables\Soft Drinks Advertising\Tea Advertising”. The seller is “onemanstrash_ne” and is located in this country: GB. This item can be shipped to United Kingdom, Antigua and Barbuda, Austria, Belgium, Bulgaria, Republic of Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Australia, United States, Bahrain, Canada, Japan, New Zealand, China, Israel, Hong Kong, Norway, Indonesia, Malaysia, Mexico, Singapore, South Korea, Switzerland, Taiwan, Bangladesh, Belize, Bermuda, Bolivia, Barbados, Brunei Darussalam, Cayman Islands, Dominica, Egypt, Guernsey, Gibraltar, Guadeloupe, Grenada, French Guiana, Iceland, Jersey, Jordan, Cambodia, Saint Kitts-Nevis, Saint Lucia, Liechtenstein, Sri Lanka, Macau, Monaco, Maldives, Montserrat, Martinique, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Turks and Caicos Islands, Aruba, Saudi Arabia, South Africa, United Arab Emirates, Chile, Bahamas, Colombia, Costa Rica, Dominican Republic, Guatemala, Honduras, Jamaica, Kuwait, Panama, Philippines, Qatar, El Salvador, Trinidad and Tobago.
- Brand: Lipton
- Original/Reproduction: Original
- Advertising type: Drinks
Miriam Haskell Early Rare Hand Blown Art Glass Bib Style Necklace! Mint! A17
Posted by admin On March 2, 2023
Miriam Haskell Early Rare Hand Blown Art Glass Bib Style Necklace!!! This fabulous art glass dangly bib style amazing necklace is to die for! The gold filagree is a extremely popular piece that Haskell has used throughout her designs, many in the earlier years, but I have seen signed pieces with the same filagree drops. This is definitely a statement piece that is on the rare side. In mint vintage condition for its age!!! This item is in the category “Antiques\Other Antiques”. The seller is “southernantiquejewels” and is located in this country: US. This item can be shipped worldwide.
- Material: Glass