North America Archives - Page 2 of 15

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Between 1972 and 1976, the cables were replaced on San Francisco’s Golden Gate Bridge, which had been completed in 1936. Some of the the removed cables were preserved and sold in 4 inch, seven-cable sections resting on a plinth. The wooden plinth is 4.75 inches in length. The cable is quite heavy: with the plinth it weighs close to five pounds! No condition issues. Read More...

19 Mar

14K C1920 Gold IUD

By M and R Gordon

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The London Science Museum has a similar device on their site, which they date c1920, but theirs is gold-plated brass not solid 14ct gold. Gold was less problematic because it is inert. They describe it as”A type of early intrauterine device (IUD) also known as a cervicouterine device or pessary. Curved disk with long coil stem attached to plate of disk. Coil opens into a wishbone shape with two arms. Arms are held together during insertion ( https://digital.sciencehistory.org/works/jq085k79n) Prior Read More...

18 Mar

Cohen’s Direct Venous Pressure Apparatus by B-D

By M and R Gordon

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As early as the 19th century, venous pressure was used in the diagnoses and assessment of congestive heart failure.Cohen’s apparatus was introduced between the wars, a time when the diagnostic importance of venous pressure was beginning to be more widely understood and measured clinically. Length of case: 13″ or 32.5cm. The maker of the instrument is the American firm, Becton-Dickinson. Read More...

24 Feb

WWII era Lifeboat compass by Hand & Sons of Philadelphia

By Hatchwell Antiques

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WWII era Lifeboat compass by John E. Hand & Sons of Philadelphia and Cherry Hill N.J. USA. MODEL NO. LMC-101-D APPROVED, US. COAST GUARD. Liquid card compass, within copper housing with hinged lid. Instruction plate to front for adjusting error. Height: 19.5 cm. Width: 22 cm. Depth: 16 cm. John E. Hand & Sons, Chestnut Street Philiaphia. Establsihed 1873. In 1873, optician John Enos Hand came to the United States from Liverpool. That same year he established John E. Hand in Philadelphia, manufacturer of surveyor’s instruments Read More...

06 Feb

1901 Patent Dental Forceps/Crown-Post Puller

By M and R Gordon

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PLEASE IGNORE COOKIES MESSAGE UNDER IMAGES. A scarce pair of Lancaster’s 1901 dental forceps/post puller that was patented on July 2, 1901: # 677,577 . Length: approximately 7.75″ or 19.25 cm. The primary purpose of the forceps was to pull crown posts–see patent description included among the images. It is a beautifully made and complex instrument that is marked with the patent date. The discrepancy between the patent drawing and the actual forceps is something often seen as a Read More...

29 Jan

Dr. Fisher’s schematic eye

By M and R Gordon

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Dr. Fisher’s schematic eye. Height: 3.25″. This is the “improved model” of the Fisher eye; the earlier cylindrical model is much more common. The frame is heavy cast iron. It comes with a box of 24 retinal images on 12 cardboard discs ( one on each side of the 12 discs) There is also a key to the discs included . When a disc is placed in the holder at the far end of the device, it can be Read More...

28 Jan

~MINT BAUSCH and LOMB CONTINENTAL MODEL CCDS c. 1900~

By Scientifica Opticae Inc.

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Standing 16 inches tall, this CCDS Continental Model, serial number 38542 sold for $200 in 1900 ($7500 USD today). Horseshoe base, elaborate polarising substage (patented Jan.3, 1899) perfect for photo-micrography and minerology with a machined Damask pattern, fully rotatable, 4 inch circular mechanical stage, engine divided internally and externally. A pleasing combination of bright brass and nickel steel, this instrument was B&L’s top of the line (only to be outdone by the DOUBLE pillar DDS model). Rack and pinion are Read More...

18 Jan

Signed J. Grunow Microscope

By Orlando Microscopes

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Signed J. Grunow Microscope. The microscope is C. 1870’s and has no case or accessories other than what is mounted on the microscope. The microscope is serial numbered 54. The microscope is signed: “J. Grunow, New York No 54”. Research on the company shows that only about 1000 microscopes were made by this firm. Double-sided mirrors are in good condition and is mounted on an arm that swings left and right. There is a stage mounted variable aperture wheel Read More...

14 Jan

Interesting American Chronometer signed W. N Bond In Boston N·543 Cased in mahogany box.

By Antiques Le Saint Georges

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Interesting American Chronometer signed W. N Bond In Boston N·543 Cased in mahogany box. Good condition . Mechanism perfect and function . Read More...

10 Jan

Schaer’s Self-Calculating Template

By M and R Gordon

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Schaer’s Self-Calculating Template was patented on August 6, 1895 in the USA. I was used to “Find the average yarn from average threads per inch” and to: “Find yards per square pound.” It is 10.5″ or 17cm long and made of steel. Read More...

09 Jan

Rare 18th-Century Leather Amputation Retractor

By M and R Gordon

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An 18th-century leather amputation retractor .Length: 17″ or” 42cm approx. We have listed the country of origin as “North America” because they were found in the USA but they could well be English imports. Kirkup notes that: “In the eighteenth-century , split -leather amputation retractors were held against the soft tissue to expose the femur or tibia and thus expedite high proximal bone section deep in the muscles.”(2005: 78-79). Bennion illustrates two split leather retractors from the collection of Read More...

08 Jan

McIntosh No.1 Electrode Case

By M and R Gordon

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McIntosh No. 1 Electrode Case as shown in Truax 1890 Catalog, page 262. Set includes vaginal electrode, cup-shaped electrode for uterus, rectal electrode, nasal electrode, Duchenne’s metallic points for muscular Faradization, metallic brush, etc. All attachments in very good condition. Case is 14″ long. Read More...