Mysterious tag found on several objects in the collection.

Several items inventoried have tags on them, like those in the picture above,  that read “MHP Collection.”  Does anyone know anything about these tags or what “MHP” stands for? 

Three items have been found so far with this tag on them.  These include: 

  • Krasno-Ivy Flicker Photometer made by the Clinical Instruments Co.
  • Electro-Shock Therapy Apparatus
  • GE Cardioscribe
  • Framed photograph of unidentified building (see image below)


Photo of the Eastern Oregon State Hospital (T2009.002.197). This framed photo also bears the mysterious MHP tag.