Antique Keen Kutter Folding Knife – Circa 1870–1904 – 5" Large Pocket Knife – E.C. Simmons St. Louis – Early American Cutlery

This large antique folding knife is a striking example of early American pocket cutlery from the golden age of hardware store brands. Produced under the Keen Kutter trademark of E.C. Simmons Hardware Company of St. Louis, the knife dates to approximately 1870–1904, based on the early tang stamp that includes the St. Louis marking.

Keen Kutter knives were widely respected during the late 19th and early 20th centuries, often produced by top American and European cutlers under contract for Simmons Hardware. These knives were built for hardworking tradesmen and outdoorsmen, combining durable construction with elegant materials.

This example features a large 5-inch closed frame, giving it an impressive presence compared to most pocket knives of the era. The single long clip blade has been polished over time but still shows some honest age in the form of light pitting, a reminder of more than a century of service.

The handle scales display beautiful swirling patterns in what appears to be early celluloid or composite handle material, with rich olive and amber tones that remain vibrant and crack-free. The nickel silver bolsters and pins complement the handles nicely and give the knife a refined yet rugged appearance.

With its substantial size and early Keen Kutter markings, this knife represents a fascinating piece of American hardware history and would make a compelling addition to a vintage knife collection.

Specifications

Brand: Keen Kutter

Maker: E.C. Simmons Hardware Co.

Tang Stamp: Keen Kutter with St. Louis, MO

Secondary Marking: 1895 3/4 stamped on tang

Pattern: Large Single Blade Folding Knife

Blade Style: Long Clip Point

Closed Length: 5 inches

Lock Type: Slipjoint

Handle Material: Early celluloid / composite (olive swirl pattern)

Bolsters: Nickel silver

Condition

This knife remains in solid vintage condition for its age.

The blade opens with good snap, though it does not snap closed. There is slight blade wobble, but the blade remains tight overall. The blade has been polished at some point in its life and shows areas of light pitting consistent with age.

The handles remain a highlight of the knife, retaining their original luster and beautiful swirl pattern, with no visible cracks or major damage. The bolsters and liners show normal wear from handling over many decades.

Overall, this is an honest antique example that still presents very well. This knife ships wrapped in acid-free archival tissue to help preserve both the blade and handle during transit and storage.

Historical Note

The Keen Kutter brand, introduced by the E.C. Simmons Hardware Company of St. Louis, became one of the most recognizable tool and cutlery brands in America during the late 19th and early 20th centuries. Simmons contracted knives from several respected manufacturers, including firms in both the United States and Europe, ensuring high-quality tools for farmers, tradesmen, and outdoorsmen.

Early knives bearing the St. Louis marking are particularly desirable to collectors, as they represent the formative period of the Keen Kutter brand before later manufacturing changes in the 20th century.

Collector's Note

Large antique folders like this are increasingly sought after by collectors due to their impressive size, early manufacturing era, and connection to historic American hardware brands. The strong visual presence of this 5-inch knife makes it especially appealing as both a collectible and display piece.

Owning a knife like this is a way of holding a small piece of American industrial history—crafted in a time when even everyday tools were made to last generations.

Disclaimer

All knives in this shop are vintage or pre-owned unless stated otherwise. While many are in excellent condition, they may show normal signs of age or handling such as scuffs, blemishes, or blade wear. I try to document condition as accurately as possible in both the description and photos. Feel free to reach out with any questions!

By purchasing this knife, you are confirming that you are 18 years of age or older and are complying with all applicable laws and regulations regarding knife ownership in your area.