A treasure from the past are cabinet photos, but this is a different type of cabinet photo. It is a postmortem photo.
They are telling us that this person has past on. They would take a previous cabinet photo and enclose it in falling leaves or another design to tell that they had died.
This one I picked up at an estate sale here in the Houston Texas area.
Appears to be a young man either in late teens or early 20's.
No mention of photographer.
Back of photo in light pencil is written what looks like H W Templeton.