I have been working on a discography of the first LP releases by Columbia Records from 1948. The ML 4000 series was the original set of LPs, along with the ML 2000 series of 10 inch LP records. Of course this is a work in progress, but have gotten the details of most of the first releases posted. Some have covers and other artwork, will fill in as time permits. If you have any missing or better artwork please forward them along and I will add them to the site.