I was wondering if you could tell me how the master tapes are/were usually handled back in the day? The reason I ask is because there are several master tapes floating around on the internet and people are offering reel to reel copies of them for sale (photo from back in "the day")

One of the events covered most by the music press in the last few months has been that a “lost” John Coltrane album has been found and finally released. The original session tape vanished when Impulse moved from New York City to Los Angeles, the label having dumped many tapes of unreleased material in the process. The music was thought to be lost forever, but the family of Trane’s first wife, Naima, found the “take home” session copy in 2004. The story of its discovery is sure to captivate many fans, making it the perfect marketing tool for this new archival release.