Here is the entire back. I was very disappointed that the seller mentions "some ink writing on back", and did not fully disclose what it was. I thought it to be a catalog number. Not only did it say fake, someone made it even worse by scribbling it out( black ink looked fresh, and same as writing on envelope). This one is going back, the same seller may have had to pull a fake RO93d from eBay
that was listed with this one. Lesson learned, but it is tough to afford a pair.