Man Finds Out The Rock “Doorstopper” He’s Been Using For Years Could Be Worth A FortuneBy Pedro Leon / July 31, 2019 8. $100,000 medium.com Dr.Sirbescu estimated that David could easily sell his “doorstopper” for more than $100,000 and asked David if she could slice a piece in order for her to be able to issue a certificate for David! Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20