Restoring a Beautiful Vintage Balisong Knife

This vintage balisong knife was completely covered in rust, but hidden beneath it was a beautiful engraved handle and a fascinating piece of craftsmanship.
In this restoration, I carefully disassemble the knife, remove decades of corrosion, restore the mechanism, and bring this old balisong back to life. During the restoration, I also discovered a PATENT mark on the blade, hinting at its history.
What do you think?
How old is this knife, and is a balisong legal in your country?
Let me know in the comments!
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Thank you for watching!
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