FYI, the poster measures approximately 30 inches long by 22 inches wide. I believe that makes it fairly standard in size for a poster. The poster is in good condition for its age, considering it's been rolled up in a box for decades. The poster has a small tear in the upper left corner, it has some pin holes around the edges and it has a few small creases (see photos). I believe those issues would be eliminated or minimized if the poster was framed.
Even with these issues, I believe this poster is an extremely rare find... And would be a great addition for anyone who is a true J.
UPDATE: As you may have noticed, I recently had this classic poster framed. I did that to show that some of the issues with pinholes and small tears can be minimized with a good framing job.