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they could be transplanted. One side looks like a different kind of ivory than the other side, both in color and grain pattern

They're both ivory. I still don't know what animal(s) gave its life or their lives for these scales.

What do you think? :)

Also, take a look at this for identifying specific types of ivory by description http://www.uniclectica.com/conserva/ivory1.html If they are ivory, what creatures do you...