I was working the night that a digger invited me on a night dig in Sacramento back in 2007..........and found out the next morning that he dug one of these.....sold it quickly for an easy $5000. I was bummed to say the least.
Looks like he got his asking price from the ending bid on one from Jeff(American Bottle auctions)
I think he should have started at 4000 and see where it goes from there.