Never heard of Lennox for furniture -- and finding it at Furniture Depot gives me some pause (not because I know them or anything bad about them -- but because I don't know anything about them and it sounds so "big box" KWIM?). The construction sounds good and finding it there verifies that the seller is not making that up. Is the chair new to the seller? Do you know why they are selling it? Have you seen it and sat in it?

Any idea who makes this chair

I just finished decorating a client's house and she requested a chair and a half for her "reading nook". I personally had never looked for a chair and a half, but the good quality definitely starts in the $2400 range, after looking at the various furniture stores around here. I think you need to watch out for the back pillow seat rest in the above pic to look crumbled and disheveled after awhile. I ended up getting my client a regular stuffed/tailored chair and ottoman for her area for the $2400 instead. I thought it would be more comfortable for her, and also in her situation, the room was too small for the chair and a half.

I looked, and looked, but no luck. There are similar ones, but none with the saddle bag arm. The back design of the chair looks dated to me…and notice how there is no head/neck support. Maybe the chair is vintage.