Thread: Need help identifying ~50 year old combo hone

Definitely synthetic. Agree with the above. Probably not a really fine stone. Might be a bevel setter

Bumping because I'm still trying to figure it out...
The only stones I've seen so far that come close to the one in question is ceramic... Anyone think I'm on the right track? Also, if it's synthetic, then should I be pushing like I am not to get as much of that oil out as possible so I can use it with water for a good slurry? When I was lapping it and I degreased it for a while, I was getting a pretty good slurry going from soaking it for about 5 min in warm water and doing circles on sandpaper...

It is certainly synthetic, almost surely a silicon carbide or aluminum oxide oil stone. These are not a whole lot of use for razor work except possibly as noted above for bevel setting. They are very coarse and not usually used with slurry.

Could be a Frictionite, not sure about the sizes, I know they made some large one and I have one about that size and another larger… somewhere.

Color is a bit off but, could be the photo or 50 years of oil and swarf.

Soak in 50 percent Simple Green and water until it stops releasing oil. They can hold some oil, may take weeks.

Mike Wolfpack34 is a Frictionite collector and could tell you more.

Nah, that's no Frictionite IMO. Pretty sure the larger ones were only made in single grit, 2.5" x 8". They don't have black specks in them either.

Have a stone (or the third or so that is left of it ) down in the shed. Just had a look and yellow one side dark yellow/orange the other. Came from my dads uncle who passed in may last year just before turning 100. Undoubtedly an old stone definitely synthetic. The measurement is 2 inch wide by 4/5 inch high and probably about 7 long if complete. Looks fairly similar to yours. Like you it is the only stone I have seen with this colouration. It is a standard course/fine stone and would be good for a knife. Hope this helps a little

India hone