19th Century Still Life Photo

I found a photo that was taken by Adolphe Giraudon in 1890. A photo of a mirror with the reflection of his camera. I find this picture beautiful. I like the art design around the mirror. With the photographers eye, I see a frame within a frame. The mirror being the frame for the camera. I would say because of the reflection, this photograph has two subjects, the mirror and the camera. Brilliant idea.