This is a 3D model of the ancient “Half-Shekel” coin from period of the first Jewish-Roman war (AKA the Great Jewish Revolt), around 67-68 CE.
The model is painted in two colors, to increase the contrast of the markings.
https://en.wikipedia.org/wiki/Temple_tax
https://en.wikipedia.org/wiki/First_Jewish%E2%80%93Roman_War