They all tell me just ask here originaltrilogy.com
Please Help Me
Jason definitely knows the information stored on this site very well - I’m thinking that the suggestions he’s given might well be the best you could get from originaltrilogy.com. Have you looked into trying to contact these people? I’ve seen you asking around on twitter, and while you’ve put great effort into this search, if I’m being pessimistic I really doubt that random fans are going to know the location of this chair since it doesn’t seem to be common knowledge. You really might have to look at getting in touch with people who have worked in high positions at Lucasfilm, or in the props department of ROTJ.