The size matters, this rare souvenir keychain knife is extremely small and it was seriously a real challenge to restore it. Every part is so small that I needed to work with extra care. I also in this video made new liners and the spring.
About The Keychain Knife
Lovely one blade antique “Souvenir” Keychain Pocket Knife by Contento. Made in Germany from the Mid centuries.

Keychain knife itself weighs only 0.18 oz (6 gr). The length with closed blade is 1.3” or 3,5 cm, and with open blade is 2.6” (6,5 cm). That is small. Beside the knives Contento was making spoons, forks, egg beaters, bottle openers, etc.
In the video below you can enjoy watching how I restored this small keychain knife!
German Knife and Sword Makers, by J. Anthony Carter, lists Contento as a trademark first registered by Peter Altenbach & Sohne in 1921 located in Solingen. At the end of the 80’s Altenbach was bought by an American company and then sold again to a German consortium in the 90’s.
The Restoration Process
I started by spraying the knife with multi-spray. Waited for a couple of minutes and I easily pulled out a single blade. With extra care I managed to dismantle all parts without any damage. I submerged parts in a 35% vinegar solution for a few hours, washed them and realized that I have to make new liners and a spring. I made new parts from an old pocket knife.

The blade was in decent condition, so I just sanded the blade by hand and polished afterwards with treadle powered Dremel.

I sanded the covers with sandpaper 1200 grit. The print has starter pilling and I didn’t have any choice, I had to sand it away. Later on I printed a new design of Trondheim Domkirke and transferred it on the cover. I did this for the first time and was very pleased with the result.

In this video I used brass pins to secure this small keychain knife. At the end I added the keychain ring. I haven’t sharpened the blade, because the knife is so small that it is not easy to hold it properly. Sharp edge would be a problem and could easily lead to injury. I don’t want that to happen.

Please subscribe to my YoTube channel if you want to see more of my upcoming restoration projects! And DON’T FORGET TO CHECK OUT Most desirable ‘SQUIRREL’ pocket knife – Awesome RESTORATION Video: https://youtu.be/017_hdGEH14

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Gran trabajo….esto en realidad seria una reconstruccion….hay gran variedad de herramientas manuales…genial….
You should see the small knife I have. It is half that size. I need to restore it as well.
Cool anvil. Did you make it?
Knife job Mr- Boris, very interesting technic for the restoration.
Thank you for the lesson.
Impressive and very well done Boris! Really enjoyed the video. Take care 😃👍🏼
Enjoyed your video and I gave it a Thumbs Up
Здравствуйте!
Пожалуйста, подскажите, что за материал Вы используете на 6:45?
Not much more to say besides GREAT job! Came out amazing… From Madrid – Spain, Cheers!
What a nice, neat and organized shop/room! Are you in Germany?
Hello FFD beautiful knife good restoration well done my friend
not so easy that one, and one of your best, nice work
Really a nice one again. Gorgeous little knife.
За что 👎 то? Такой кропотливый труд только положительной оценки достоен!
that was amazing restoration and to much dedication to your work it is inspiring,
Awesome 🤘💕
👏👏👍🇦🇺
Really good job it turned out super cute and shiny new one you are really amazing and the video
Hi Boris, nice restoration, I love it 🙂 It turned out really great. I like the attention to detail.
Also, the bathtub is great 😀
A miniature porcelain bathtub. How cool is that? 🙂
Wow! You *rebuilt* that tiny thing! I would’ve given up on it, what with all the rust. You even put new artwork on the handle. I am in awe.
Outstanding sir! It was a pleasure watching you work.
Of course you know interpol is looking for you right? Admit it, you stole the Geico Gecko’s bath tub. How cruel.😄
Magnífica restauración!!! Guau!!!
C’est de la poésie !
Nice result bro! Greetings from Germany and stay healthy!:-)
Simply amazing as always
Would I be out of line requesting a channel sticker ?
I enjoyed every second 👌 To think that little thing needed so much work😁 nice work fixing the cracked scale. Are you using transfer paper?
Nicely done..keep going 😍👍
I love to watch your work! Incredible job with the decal! Thank you for sharing!
Ok man I like your videos but your last 3 videos have had silly thumbnails of you doing silly expressions with your mouth.
Nice small knife 👍👍👍👍
Where do you get all those old tools?
👍
Отличная работа!!!
Где же вы берете старые ножи? Этот нож как будто выкапали)
Отличная работа,почти новый нож!
Great Job ❤️👍❤️
Love the mini bathtub
Too cool!
That is so cute. So tiny. I love it. Great job as always my friend.
Привет Норвежец
Superbe restauration comme d ‘habitude .
Well done Boris! it was amazing how small that was, I bet it was challenging!
супер микро нож!
A job well done buddy.
The end result was amazing.
I have the same one! My grandma gave it to me
Cool job 👍 And great restoration👍
Why do I feel like I am watching some sort of ‘workshop porn’ whenever I watch this channel? Don’t get me wrong, it’s not that I don’t like it, I just feel a bit naughty.
Super restoration
Борис, приветствую, рад тебя видеть!
Nicely restored, well done 👍
Привет мой друг Борис👋👋👋 этот Немецкий мини нож получил новую жизнь я знаю что тебе восстановить любой нож не помеха👌🏽 ты мастер своего дела и надежный друг🤝 желаю тебе успехов в твоей деятельности ✌🏻 будь здоров и ждём новых контентов 😋
Satisfied!
Wow it was like you was performing delicate surgery the whole time. Very garcefull and careful the whole time through. This came out top notch!
Cool 👍💪✌️🙋♂️
Awesome restoration, I love the end result
I love small things and I think that old knives are cool. I am very jealous. Lol
First!!!!!