An interesting introduction in Pitt River Museum

Pitt River was the last museum that we visited. I was tired but I still shocked by the exquisite artworks. There were lots of masks from different areas. However, one of Japanese mask attracted me a lot. Nozomi  told me that is a kind of jealous woman mask in Japanese. But later, I found it was printed on the introduction of Pitt River. Like...

this~ There was a big 'WELCOME' on it. = =   Seems like a curse or a joke made by staffs in the museum. Anyway, it is a real special introduction...