This real photo postcard has the 2 surviving girls of the 3 girl triplets, which is explained on the back of the postcard.
This is what was written on the back: 
"These are what we had to send to you.  The one with her mouth open is Rhoda and the other one is Ruth we call her Tiny because she always was so little-just weighed 3 pounds but weighs 14 now and Rhoda weighs 17.
The one that died name was Rubie.  They were Ruth Rubie and Rhoda."
Antique pre -owned condition with wear, please see all photos.