Three Circles

Is there a link to Tamerlane's Three Circle coin on numista?

Thanks,

Are you looking for this one?  N#407656

I am looking for the one with three triangles of circles which was famous as the three corners of the world. I didn't see any circle here.

I see three circles.  If it's not the one someone else will find it, I'm sure.

https://www.tamburlane.co.uk/resources/timur_coin.html

Is there a picture of it, available in the public domain?

I don't know. You could email the person who posted that picture. tamburlane@gmail.com