This 10" long file is engraved with the manufacturer: Disston Porter USA. It is a "fine-grade" file and is in very good condition. Overall length: 15.5"; width: 1.5"
After 2 decades (1840's to 1865) in the saw-making business, Henry Disston and Son Co. began producing steel files in 1865. Disston died in 1877, only one and a half years after seeing his products receive the highest honors at the great Philadelphia Centennial Exposition of 1876. Eighty years later, in 1955, the company was sold. The Disston brand name is still in existence today.