Ruler with two coins on top of it next to each other

Black and white scanning image of a sea slug

White marble statuette of a woman and two children

Old man with a long beard

Two ancient coins on a white surface next to a ruler

Ruler next to two ancient coins on a white surface

Silver coin with a cross on it next to a ruler on a white surface

Ancient Roman coin with the head of a man wearing a crown on it

Two Chinese coins on a white surface next to a ruler