Antique Two Piece Group Stellite Metal Scalpels Medical Surgical Instruments

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Seller: elixir172n28 (290) 100%, Location: Rochester, New York, Ships to: Americas & many other countries, Item: 332914483286 Group of two metal one-piece scalpels, not a pair but very similar in styling, each with a story behind their markings. Larger scalpel is 13.5 cm long with a 3.3 cm long blade, 8 mm wide. Handle is 15 mm at its widest and 4 mm at its thickest point. Marked JEN-SAL in the middle of the handle on one side. Smaller scalpel is 12.5 cm long with a 3.4 cm long blade, 7.5 mm wide. Handle is 9.5 mm at its widest and 3 mm at its thickest point. Marked STELLITE in the middle of the handle on one side. Both have polished blades, with a more matte finish on the handle. A smooth surface on the handle is very unusual for a scalpel (and can be a drawback). JEN-SAL was a trademark of the Jensen-Salisbery Laboratories in Kansas City; their building there dates from 1918 and I believe still stands, as it was placed on the National Registry of Historic Places in 1985. Jensen Salisbery Labs was the site of development of the trivalent equine encephalomyelitis vaccine and other veterinary research. They published the Jen Sal Journal (of Veterinary Medicine) from, apparently, 1919-1972. This company was also a manufacturer and supplier of veterinary & surgical supplies and instruments. STELLITE was a trademarked name of Kennametal, Inc., with prior ownership by Union Carbide, Stellite Division. Stellite refers to metal alloys made from various amounts of cobalt, nickel, iron, aluminum, boron, carbon, chromium, manganese, molybdenum, phosphorus, sulfur, silicon, and titanium, in various proportions; most alloys contain four to six of these elements. Stellite 21 and Stellite 31 alloys are used for producing cast turbine blades which are used in military piston engines on a number of aircraft and also in medical implants & instrumentation. Stellites are extensively used in medical equipment because of their wear and corrosion resistance. Stellite was invented around 1912 by Ellwood Haynes, inventor & metallurgist (1857-1925, see photo 12), as a stain-resistant cutlery metal (Harry Brearley of Sheffield, England, is credited as the inventor of stainless steel in 1913). Haynes discovered that mixing tungsten with chromium, steel and iron resulted in the formation of strong and lightweight alloys that were impervious to corrosion, and could endure high temperatures. In 1912, he formed Haynes Stellite Company to produce one of the new alloys, and received lucrative contracts during World War I, making Haynes a millionaire in 1916. He invented martenistic stainless steel in 1919; he sold his patent for stainless steel to the American Stainless Steel Company in exchange for enough stock to gain a seat at the company's board of directors, a position he held for 12 years. He merged the Haynes Stellite company with Union Carbide in 1920. Later in life, he became a philanthropist and served two terms as president of the YMCA, five years on the Indiana Board of Education, and was an active member of the Presbyterian church. After his death from complications arising from influenza, his Kokomo mansion was converted into the Elwood Haynes Museum and is open to the public where many of his original inventions and automobiles are on display (portions from Wikipedia). Condition: Both scalpels are in very good condition; one small spot of corrosion on larger scalpel (photo 4). Smaller scalpel is in near-new condition., Maker: Jen-Sal; Stellite Insights Exclusive
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