This is an original envelope from the iconic Portland Hotel which was in the center of downtown Portland, Oregon for decades.  It was U-shaped.  There is now a public plaza where it stood for years.  This envelope evokes a memory of the old hotel.  It is 6 & 1/2" by 3 & 5/8" and has never been used.  There is a crease at the top left corner but it is otherwise in fine condition.