Olsen OK Lockback Knife. Vintage Model 510 With Brass And Rosewood
The Olsen Knife Company was established by Lee Olsen Jr. in Howard City, Michigan, and primarily operated during the mid-20th century, specifically from the 1950s through the 1970s. During this period, the company gained recognition for manufacturing high-quality, fixed-blade hunting knives. These knives were often distinguished by the inscription “Olsen OK H.C. MI” stamped on the blade, indicating their origin in Howard City, Michigan. The curved spine and brass guard were also typical features of their fixed blade offerings.
Later in its history, around the late 1970s, Olsen OK shifted some of its production to Solingen, Germany, a region renowned for its cutlery manufacturing. There is also evidence suggesting collaborations with Japanese knife makers, particularly G. Sakai in Seki, Japan, who were known to produce folding knives for Olsen OK. These collaborations might have resulted in variations in steel types and markings, such as the “440 Stainless Japan” marking found on some models. Additionally, a brief period in the early 1980s saw the Olsen Knife Company trademark being used by a group in Grand Rapids, Michigan. The company’s primary operational period concluded around 1980, with the trademark’s limited use extending until approximately 1985. This relatively finite production timeframe contributes to the vintage appeal of Olsen OK knives.
3. Detailed Specifications of the Olsen OK Lockback Knife Model 510 (Brass and Rosewood)
Based on available information, the Olsen OK Lockback Knife Model 510 with brass and rosewood exhibits the following specifications:
Blade Length: The blade of the Model 510 is approximately 3.5 inches long, a dimension consistently noted in descriptions of vintage Olsen OK 510 folding knives. This length suggests a practical size suitable for everyday carry or light utility tasks.
Handle Material: The handle is crafted from rosewood, a material known for its rich color and attractive grain, often used in knife handles for both aesthetic and ergonomic qualities. It’s worth noting that one source mentions “dymondwood scales” , which could refer to a specific type of processed rosewood or a similar dense hardwood treated for enhanced durability and appearance.
Bolsters and Liners: The knife features brass bolsters and liners. Brass is a common material in vintage cutlery, providing both structural support and an appealing visual contrast to the rosewood handle. The metallic sheen of brass often develops a patina over time, which can be desirable to some collectors.
Locking Mechanism: As the name suggests, the Model 510 employs a lockback mechanism. This type of lock is known for its strength and reliability, securely holding the blade in the open position during use. The lock is typically released by pressing a bar located on the spine of the handle.
Overall Length: When fully opened, the knife measures approximately 8.5 inches in overall length, with a closed length of 5 inches. These dimensions indicate a medium-sized folding knife that is substantial enough for a good grip yet compact enough for comfortable carry.
Blade Style: The blade style is described as upswept or trailing point. This blade shape is characterized by a spine that curves upward towards the tip, providing a larger cutting surface and making it well-suited for tasks like skinning.
