Ivory Cost?

Hello, I purchased the estate of Terry Kerby a cue maker from Oregon Wisconsin.
I'm selling off duplicate and unneeded items. It included slabs of ivory about .200 thick for inlays.

They have what appear to be area dimensions for what maybe square inch numerations on them. Is it normally sold by the sq. inch or weight? I will be listing for sale other WI cue makers once I get to the value, as I don't do inlays.

Thanks for any help.

Replys

I wanted to give a shout out for those who gave feed back. Thanks for the pointers and direction.
Great advice!!