Tom, Interesting stories of the mastering, etc., of early Mercury LP's. One of the two MG10000's I have at hand, MG10137, lists (in the order quickly typed below): MG10132 MG15012 MG10136 MG10129 MG10125 MG10131 MG15046 MG15044 MG10130 If scans of the complete info would be helpful, contact me offlist. Jim Long Baroda, MI