It is the sort of thing that record collectors and buyers at record stores dream about; accidentally stumbling upon that very rare, extremely valuable record, and for a steal. Such was the case for Pittsburgh, PA record store owner Jerry Weber who recently uncovered an ultra-rare Robert Johnson record ("I Believe I'll Dust My Broom" - that his son Willie is seen holding up in accompanying pic c/o Pittsburgh Post-Gazette) that he called "the holy grail of 78s." Weber, in an interview with Pittsburgh Post-Gazette, said he discovered a copy of the second song ever recorded by Mississippi blues legend in a box of old albums that he picked up for just $50 for his store - Jerry's Records. In good condition the record is valued at anywhere from $6,000 to $10,000 to $12,000 - depending on who you talk to. There are estimated to be about two dozen to thirty copies total of the record out there in similar condition. Weber has no plans of selling the record according to the Post-Gazette and to another report run by the Associated Press who wrote that instead of selling the record his son WIllie will spin the rare Robert Johnson record for Jerry's Records customers at exactly 2 p.m. every Saturday afternoon from now through the end of the year.