Having seen this thread, I contacted the seller and they added the extra photos to their listing. I'm not sure why some people have a fascination with badly described ebay listings. If people see something odd, why not do everyone a favour and contact the seller about it.
I'm afraid that unless you plan to investigate and police all this seller's
camera listings, all you've done is delay the inevitable.
I bought a "near mint" Crown Graphic that was just as much a "barn bind" as that Retina. Mold, rust, dust/dirt, mouse turds, bird poop, spider webs... everything you can imagine. The lens' shutter blades were completely rusted closed and nothing would move... everything completely locked down with corrosion. The purchase was a complete loss. The seller refused to reply to my inquiries. It wasn't worth the fight through eBay arbitration, PayPal arbitration, etc. Once you put hours into wasted time like this you've usually lost more money than you spent buying the junk and it's a tiresome/annoying process anyway. Fortunately I got it pretty cheap because he posted no pics and I bid low. I think I paid less than $100 with shipping. That still hurt.