This  photograph popped up when I was using a date search for something to post today. So this file number was 0221, today's date. I had no idea what the subject of the photo was, nor where or when I shot it. Of course I was intrigued and instead of looking  up when I took I decided to stare at it. All kinds of things crossed my mind and at some point I even thought it could be a completely different medium.

What do you think it is?