Jeff, you are correct, this is the copy that recently sold on eBay. Given the condition issues, I waited until the price went down a bit when the seller listed it a second time with a lower starting bid. Obviously this is a good candidate for backing, but as you know, I'm very reluctant to back any poster, so I'm hesitant at this point. If I do decide to have it linen backed, I will refrain from any re-touching/airbrushing, only providing a support for the paper to ensure its future conservation. I'm not a big fan of the overly pristine look.
Sorry to have been bidding against you, Okie!