We know the source pic-- the question is if the original is color, and it was just reproduced in B&W for the Chrronicles book where it appeared.
Here's the one I found this past year locally, it's the thickest of these early ones I've seen
I think the ESB sabers were all made from newly-acquired flashes. The ANH hero was either thrown away, stolen, or somebody is quietly sitting on it.
OR in George Lucas' personal collection... along with ANH Vader and Chronicles Ben Kenobi sabers.
I wouldn't be surprised if these magically show up at the Lucas Museum in 2021.
*sigh*...
It's purely hopes/dreams, and speculation at this point - NOT to be taken literally.