I've got an opportunity to buy quite a sizable amount of these. Mostly walnut, but some maple & oak as well.
One of my suppliers father put these away on the 2nd floor of their business, 20 years ago. He had the logs sawn off his own farm, then moved them to the building & stickered each log in the order it was sawn. 7' to 12' long slabs, 2-3" thick. All with 2 live edges. I didn't get a real solid count, but I bet there's at least 10-15 trees up there ranging in width from 12" (small end) to 20" (small end)
He doesn't know what they're worth, nor do I, but to my knowledge, I'm the only one he's offered to sell them to & I want to keep it that way, I just need to come up with a price that's fair for both of us.
We're doing more & more rustic work every year & I believe I have a market to use some of these fairly soon.