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Lyman 429421EX. What does EX tell me??
http://castboolits.gunloads.com/show...umber-suffixes
Quote: Originally Posted by skeettx http://castboolits.gunloads.com/show...umber-suffixes This link is a trip back in time. 2005 and the excellent work Floodgate did on Lyman/Ideal research.
