The following item was purchased on eBay. It
is a "Souvenir Folder of the Pennsylvania State Sanatorium, Cresson, Pa. It is postmarked Cresson, Pa State Branch,
which was the designation of the post office located on the sanatorium grounds. It was mailed June 9, 1927 to Mrs. C.
A. Patterson in Washington, Pa.
The item is the only Postcard Folder I have ever seen of the Cresson Sanatorium.
About half the photos in the folder appear elsewhere on this website, but the other half are new views of the san.