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Old 17-05-05, 18:13
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David_Hayward (RIP) David_Hayward (RIP) is offline
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Join Date: Feb 2003
Location: The New Forest, England
Posts: 3,841
Default Z numbers

I know that Z 38-1- was used from 1938, and that Z 39-1-, Z 40-1-and then Z 41-1- were used but when DID the sequence stop?
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