A copy of legendary country-blues singer Tommy Johnson's 1930 recording "Alcohol And Jake Blues" recently sold for $37,100 on eBay.
http://www.broadwayworld.com/bwwmusic/article/Rare-Tommy-Johnson-1930-Blues-78-Rpm-Record-Goes-for-37100-on-Ebay-20130930
The B-Side "Ridin' Horse"
As you can hear, the only other known copy of this record has lots of wear and is barely audible through the record wear and surface noise. The copy sold on eBay is reportedly in pristine condition and the buyer plans to digitally restore the recording.