1945–1955 Hammer Brand Pocket Knife – Colorful Clam Shell Handle – USA Vintage

This vintage Hammer Brand pocket knife, produced in the immediate post-war era, is a vibrant and well-preserved example of mid-20th-century American cutlery. Featuring Hammer’s iconic striped clamshell handle, this knife balances bold visual appeal with solid, workmanlike construction.

The single blade opens and closes with excellent snap and remains tight, retaining its original profile. Age-appropriate patina is present, adding character without detracting from function or integrity. The colorful clamshell handle and bolsters are in excellent condition with no cracks, chips, or damage noted, making this a particularly attractive survivor from the period.

Specifications

Maker: Hammer Brand (USA)

Era: Circa 1945–1955

Pattern: Single-blade folding knife

Blade: Carbon steel

Handle Material: Colorful clamshell composite

Closed Length: 4 1/4"

Action: Strong snap, tight blade

Condition

Very good vintage condition. The blade shows honest age-related patina and light surface wear consistent with decades of storage. Blade remains full with no chips or breaks. Handle and bolsters are clean and intact, with excellent color retention.

Historical Note

Hammer Brand knives were produced by Imperial Knife Company and became especially popular in the mid-20th century for their affordability, durability, and distinctive handle materials. Clamshell and striped composites like this example are strongly associated with the post-WWII boom years, when American manufacturers experimented with bold colors and modern materials.

Collector’s Note

Hammer Brand knives with intact clamshell handles are increasingly difficult to find, as this material was prone to damage over time. This example stands out for its condition, snap, and eye-catching design—an excellent addition for collectors of vintage American knives or mid-century industrial design.

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.