Need help with information about a chair

I have a cushioned chair from the 80's i believe from the company The Sheraton MFG. Company. It is 27 inch long (front to back) and 30 inches wide (from arm to arm). I'm trying to found more about this chair, such as the name of its model, it's exact year, and possibly a potential resale price. Any and all comment would be of great help thank you.

 

In what part of the world did you find it? And what were you told about it? Why do you think it's from the 80s? Why do you think it was made by the Sheraton Manufacturing Company? And isn't that a tag? If so, please post a photograph.

Debora