My job provides many opportunities to pick through rubbish piles out of old houses. Needless to say I find lots of cool stuff, although my wife would disagree as to the perceived worth of my finds. The other day I ran across an old piano that has been sitting outside under a shed for several years. The piano was ruined of course but I noticed the veneers on the keys were separating from the wood beneath. I popped several off to see if they were ivory. Well after some research I am 90% sure that these are ivory. I haven't done the hot needle test however each key that had an "L" shape, was made with two pieces. My few minutes of research indicates that this was done with ivory while plastic would be one piece. Does anyone have any experience with such so as to confirm my suspicion that this indeed elephant ivory?
I plan to use them as spacers for small hidden tang knives. They are super dirty and stained, I don't know if they could be used for anything else. Maybe bolsters but they are only about 1mm thick. Besides inlays, has anyone else used these for some aspect of knifemaking? Or does anyone have any suggestions as to how to use them or clean them up?
I do not make knives for sale, so I'm not particularly interested in the legal issues associated with elephant ivory that always seems to be suggested in threads concerning this subject, thank you.

I plan to use them as spacers for small hidden tang knives. They are super dirty and stained, I don't know if they could be used for anything else. Maybe bolsters but they are only about 1mm thick. Besides inlays, has anyone else used these for some aspect of knifemaking? Or does anyone have any suggestions as to how to use them or clean them up?
I do not make knives for sale, so I'm not particularly interested in the legal issues associated with elephant ivory that always seems to be suggested in threads concerning this subject, thank you.