Based on "The Map of the World tablet" (https://skfb.ly/6WWzY) by The British Museum is licensed under CC Attribution-NonCommercial-ShareAlike (http://creativecommons.org/licenses/by-nc-sa/4.0/).
I used [rapidcompact.com](http://rapidcompact.com) optimize this excellent 3D scan, choosing default settings and a 3mb target filesize. Color texture was then rebaked separately with xNormal.
Object info
> Clay tablet; map of the world.
>
> Production date: 6thC BC (approx)
>
> Museum number: 92687
>
> © The Trustees of the British Museum. Shared under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) licence.
>
> See: https://www.britishmuseum.org/collection/object/W_1882-0714-509