Oh, how I wish this legendary lens mounted on an RB67!! Damn you, universe!!
Good luck with the sale, I wish more sellers would bother to post proper images showing the condition of the glass like you did here, you deserve to sell this beauty quickly at the price. Even though the 50mm f/4.5 C that I use is not the might highly regarded wide-angle, nothing in 35mm can touch the image quality when looking at the print, so I can just imagine what this legendary ULD lens can produce.