Jeff N., I'm not saying that any logo will be visible or identifiable on any part after all these years. But IF there is a logo that MIGHT be identifiable what is the harm in looking into it? I will admit, I don't see hardly any of what all the stills might possibly be or what the arrows are pointing out. I have no expertise in computer photography, how to adjust this and that to look for this and that. Give me enough gas in my tanks, my mask and fins, and a depth I can get back from and I can recognize stuff on the bottom. For me, I need real time context and 3D. I have seen stuff that has been down a while with marine life clinging to and growing on it. Different stuff likes to cling to different surfaces. It is possible that a logo can be "seen" by what is clinging to the various surfaces on and around it. It might be anything, or it might be something. LTM- John