Case filled an order for 81,000 knives for the United States Navy just before World War I and provided a custom survival knife for the astronauts on Gemini and Apollo space missions. This same C appears with an extended line under the ASE of Case and X or TESTED XX below the line. Case & Sons of Bradford, Pennsylvania began making Case knives about 1905. The company continued through 1940, but used other marks at the same time, including the short-tailed C with an arrow point at the top. Keep in mind that a knife’s tang stamp alone cannot be relied upon for a 100% positive identification of age.There are counterfeits out there, so knowing other details about knives of various eras is also important.By learning the simple Case dating system, you can easily determine the year a Case knife was manufactured.In 1970, Case added dots beneath the "USA" on the tangs of all knives. So, nine dots appeared in 1971, eight in 1972, and so on.Year Symbol Chart ( Types of Buck Knives (com) Camillus Tang Stamps and Dates ( Camillus Tang Stamps circa 1915-1946 -A WORK IN PROGRESS (AAPK-All About Pocket Knives) The Tang Stamps of Adolph Kastor, Camillus and Their Cutlery Relatives (Knifeworld) Street Cutlery (AAPK-All About Pocket Knives) Carl Schlieper German Eye Works (straightrazorplace.com) Case College Tang Stamps ( Case Tang Stamps ( Identifying the Age of a Case Knife (AAPK-All About Pocket Knives) The Case XX – Secret Code (Shepherd Hills Collectors Club) Case XX Folding Knife Tang Stamp Dating Video (You Tube) The History of W. Case & Sons and Related Companies (iknifecollector.com) Case Factory Knives ( Case Factory Pattern Number Reference Guide (AAPK-All About Pocket Knives) Case Knives (AAPK-All About Pocket Knives) Old Case XX “Family” Tang Stamps (Trent Rock’s flickr page) Cattaraugus Knife Numbering System (AAPK-All About Pocket Knives) Cattaraugus Knives (AAPK-All About Pocket Knives) Great Eastern Cutlery (AAPK-All About Pocket Knives) Imperial Tang Stamp Chart ( Old Imperial Tang Stamps (AAPK-All About Pocket Knives) Kershaw Markings on 1050 ( Puma Knives ( Puma Knives Dating (Puma Knife Man) Queen Cutlery Tang Stamps ( Queen City Tang Stamp (Terry Truett’s Photobucket) Google Book Review of American Premium Guide to Knives and Razors: Identification and Value Guide (Google Books) The History of Queen (AAPK-All About Pocket Knives) Remington Tang Stamps (AAPK-All About Pocket Knives) Remington Knives (AAPK-All About Pocket Knives) Remington Scout Knives (ibdennis.com) Remington Knives (AAPK-All About Pocket Knives) History of the Robeson Cutlery Co.
You may need to clean this area to see marks but if the knife is a Case, that's where you'll find the mark.
The number stamped on the tang of the main blade of every Case knife identifies the pattern. 6 is the handle material 3 is the number of blades 47 is the factory pattern So, this would be a #47 pattern knife with a jigged bone handle and three blades.
The first number is the handle material, the second number is the number of blades, and the third number is the factory pattern number.
Shields, bone & other handle cover colors & styles, jigging patterns, hafting techniques & more can be used for further validation.
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