Hello, I was wondering if anybody knows much about older wilfer basses? I'm going to find out more in the next few days, but it seems to be from 60's, possibly 70's wilfer bass for sale. The bass will be appraised, but I think it may sell for around around $10 000, could someone verify that this is in the ballpark. Also any history would be greatly appreciated as well. I did do a search and spent quite a while sifting through posts, but I really couldn't find that much. Thanks in advance! D.W.