Thanks Leatherstockings, Ernie, Rez & thebigspendu so far. Ernie, I did think about using some 3k but I also have some 2.5k & 2k & on down to 240 grit. I've even thought about using some lapping film. Thanks for the compliment.
@ Rez, I guess mineral oil is one oil I don't have & need to get some. The toothpaste is even a good idea because it is a very mild abrasive. I've used it before to remove something but I didn't think about it this time. I even mentioned toothpaste in a thread once I think because someone had a blade with a spot on it.
@ thebigspendu, I thought they were bone at first but the more I looked at them, I figured & took a chance they were Ivory. They have all the markings Ivory would have. I thought the same thing about the pattern & that they had to have some way to do that. They look so much more like Ivory than bone to me. Maybe someone can shed some light on that as well. Even bone is pretty hard. I'll see if any of my resources have a straight like that in them but I doubt it.
Thanks ALL!