Black and white photo of a display case with a map of the United…

X-ray of a group of fish on a black background

Drawing of a floral design on a piece of paper placed on a surface

White tray on a table with a scale and a piece of paper on top of it

Close up of a small white object on a black surface

Piece of paper with a QR code on it next to a ruler

Black and white engraving of a man with a beard and mustache

Black and white engraving of a man with a beard wearing a cap and…

Close up of a plant with green leaves on a white background