baby Thelma Cohs, 4 months

I can't scan the writing on the back as it is in pencil on a dark background so can only be seen at an angle. It's very old fashioned handwriting and to the best of my interpretation it reads "Thelma Cohs, 4 months when taken." Her surname could conceivably be Colis, but it looks just like the other "h"s and doesn't appear dotted.

No locations or photographers are identified. This is the ONLY information I have specifically about this photo.
I purchased this in a huge lot of photos from Ebay. They have no traceable history as the seller got them from someone who checks the dumpsters behind estate sales around several states in the midwest! I can only list what is on the individual photos themselves as they all came from different places. That's why I'm posting as many photos as I can, so any more of their history isn't lost. I would be interested to know if they help any family researchers though.