Today's mystery photo is just a smidgen under four inches wide. Within the oval framework is a photo of three girls. The German text on the frame states: "Zur Erinnerung an das Jahr 1907." Translations of that would be to the memory of the year 1907 or for the remembrance of the year 1907.
There is no information on the back of the photo that would help us learn who it is that we're remembering.
They do look a little grumpy, though.
Perhaps their clothes were uncomfortable. Or they didn't like having their picture taken. Or maybe they just wanted to get back to reading Stefan George's latest volume of poetry, Der siebente Ring. Or perhaps it was all of the above.