Restoring Vintage CS Osborne Round Knife

[MarshalWill]

Well, then. A good item to put your efforts on. Congrats.

[Mablung]

A resounding success.  Two and a half hours on my stones, then stropping on jeweler's rouge, and it's got a mirror-polished edge and cuts 7 oz. shoulder like butter.  Skive is smooth as glass.  This was $59 well spent.

[MarshalWill]

Outstanding! Nothing is better than a vintage leather knife with a good edge on it.

[Mablung]

29 minutes ago, MarshalWill said:

Outstanding! Nothing is better than a vintage leather knife with a good edge on it.

I’m coming to agree. I was elated last night, when I finished it and tested the edge. I think there’s a spot near one of the points that I need to smooth out, due to some skipping on one cut. I’ll look at it with my loupe to see. In any event, it’s got a wonderful edge on it now. 

[NatesLeatherGds]

On 2/15/2024 at 1:18 AM, Mablung said:

A resounding success.  Two and a half hours on my stones, then stropping on jeweler's rouge, and it's got a mirror-polished edge and cuts 7 oz. shoulder like butter.  Skive is smooth as glass.  This was $59 well spent.

That's great. Pictures of it all done if you can!

[Mablung]

2 hours ago, NatesLeatherGds said:

That's great. Pictures of it all done if you can!

I’ll share some tomorrow or Saturday. I’ve decided, after a few weeks of using it, that I need to adjust the bevel at a couple points, as I was less consistent with the angle than I thought. But overall it’s in great shape now and extremely sharp. I’ve nearly skived my finger once or twice due to mild carelessness regarding hand placement. 

[Mablung]

On 2/29/2024 at 8:19 PM, NatesLeatherGds said:

That's great. Pictures of it all done if you can!

Couple of closeups of the edge. I couldn’t get a macro shot to focus, but this gets the idea across about the bevel and degree of polish. It looks more scratched in the pic than it really is. The bevel is fairly shallow, so at some point I’ll reprofile it again to make a more aggressive bevel to give it some extra strength. As long as I strop it every few cuts and don’t press down too much (a bad habit I developed when working with my dull Stohlman knife), it lasts several feet of cutting before it needs stropping. I like it a lot. 

[NatesLeatherGds]

Well that is nice! Good job.

[Mablung]

7 minutes ago, NatesLeatherGds said:

Well that is nice! Good job.

Thank you! It’s a dream to use. Just needs a little tuning as I adjust how I use it. 

[csosborne]

On 2/10/2024 at 12:45 AM, Mablung said:

It is. Pic attached. Stamped “Newark,”

so while I’m not sure of its age exactly, I’m fairly confident it’s an older one, based on my research on here. It’s on the larger end, but I don’t think I’ll necessarily mind that. 

Good Afternoon,

Well if it is stamped Newark you have yourself a unique knife in your hands. We were located in Newark until 1906 when our Factory burned down. Ever since then we have been located here in Harrison, NJ and still current. All tools stamped Newark are over 100 Years old!!!!

Thank you
Daniel V.
C.S. OSBORNE & CO