This is a rare vintage ACE-PAL-O Survival Knife. We acquired this in Seki, and it is in such nice shape because it was hidden away in a safe place there for decades, although this one is missing the additional blade (comes with only one). Made circa 1973, the original design was patented in 1959 by two inventors from Eugene, Oregon. One of them improved the design and patented the improved locking mechanism in 1974, making this probably the first patented modern blade changer design. The actual patent associated with this knife is from 1972-74, although it is not marked on the knife (they used the 1959 patent on the knife). We are including copies of both the 1959 and the 1974 patents with this knife since it is highly collectible and we were able to find the documents from the patent office. See the great article about this knife on Bladehistory for more information. The knife features a removable stainless steel blade. Also included is a sharpening stone, compass, fishing hook, thermometer and more. Comes with original sheath (no box).
- Model: Ace-Pal-O Space Age Survival Knife
- Condition: Unused near mint condition, may have light handling wear or signs of aging. Original factory edge. Includes pictured knife and single blade with sheath. The compass needle has fallen out of place and does not work.
- Made in Japan
- Folder Closed, or Fixed Overall Length: 5.18" long
- Blade: Approx 3.5" long, 440 Stainless Steel
- Handle: Aluminum
- Vintage Survival Knife
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