Vintage 1977 Case XX Lockback – 21051 LSSP – Black (Ebony-Style) Synthetic Handle – Made in USA

A classic mid-century American folder, this 1977 Case XX lockback delivers impeccable function wrapped in clean, minimalist form. The tang is stamped CASE XX USA above three dots—dating it to 1977—and the secondary tang reads 21051 LSSP, tying it to Case’s sleek Lockback Special pattern.

The smooth dark synthetic handle has the look of deep ebony; clean and understated with a hint of shine. A robust stainless blade snaps open with a satisfying click and locks securely—perfect for safe use or display.

🔧 Specs:

Maker: W.R. Case & Sons – Bradford, PA, USA

Model: 21051 LSSP (Lockback Special)

Year: 1977 (3-dot tang)

Blade: Single Clip Point – Stainless Steel

Handle: Smooth Dark Synthetic (ebony-style)

Closed Length: Approx. 3 3/4"

Function: Excellent—snaps open and locks securely


🛠 Condition:

This knife is in very good vintage condition with only light signs of age and handling. The stainless blade is clean and full, with original factory grind lines still visible. It opens smoothly with a strong lockup and crisp release. The dark synthetic handle scales are intact with minor surface scuffs consistent with decades of careful storage. Bolsters show light patina but no deep scratches or dings. A solid, ready-to-carry piece of 1970s Case craftsmanship.

📜 Historical Note:

The Lockback pattern offered dependable one-handed deployment and secure locking long before modern tech knives existed. The 21051 LSSP, often called a "Lockback Special," reflects Case’s commitment to dependable design and value during the 1970s. Its clean styling and reliable mechanics made it a trusted tool for outdoor and everyday use alike.

🧲 Collector’s Note:

1970s Case lockbacks are popular with both collectors and practical users—blending nostalgia, craftsmanship, and daily useability. This clean example, with its strong mechanism and simple synthetic handle, offers a classic Case look at an attainable price point.

⚠️ 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, scratches, or blade wear. I strive to document condition as accurately as possible through photos and description.

By purchasing this knife, you confirm you are 18 or older and comply with local laws and regulations on knife ownership.