There was a large shipment of brand-new '20s-era Studebakers that went down in a storm on, I think, Lake Superior (shades of Edmund Fitzgerald here, eh?). No way to salvage them bck then, so insurance as I recall covered the company's loss. I SAW, though, on TV some years ago a show where divers with video camera went down and at least got to look around. The tape showed Studes still in place and not looking BAD for all that time in the drink! I have read about Lake Superior that at deeper parts, the pressure prevents oxygenation (at least slows it, compared to the SURFACE conditions). So, they are still recovering logs that have been down there for many, many decades. I wonder if the pressure preserve those Studebakers, too?