This is a framed specimen of the Caligo eurilochus moth, commonly referred to as the owl butterfly. It gets it's name from the circle markings on the back of its wings which look like owl eyes.
The frame has glass on both the front and the back, so you can see the difference between the two sides of the wings.
The frame measures ~19.5 x 17 x 3cm
You will receive one similar to the one pictured