The generic filename appears in several online galleries and archives, typically as a placeholder for various types of media:
: Multiple photographers on Flickr use this default filename for photos ranging from Point-and-Shoot captures to professional Canon EOS 90D Go to product viewer dialog for this item. IMG_4787.JPG
Could you describe the or where you found it? This would help me identify the exact "piece" you are looking for. IMG_4787.JPG | jetexc - Flickr The generic filename appears in several online galleries