Muddy Waters Sings "Big Bill"

Late 1960's reissue: Blue to white fade Chess labels, used between 1966 - 1970. Cover has "Electronically Altered For Stereo" sticker affixed to front. Labels on this variant have the following distinctive features: -"SINGS "BIG BILL"" title is positioned in two lines, not one -"W4RS-2566" / "W4RS-2567" is printed on sides 1 / 2, respectively. -"STEREO" is in all capital letters, and without the preceding qualifier "Electronic".