Thread: 67 GP production numbers
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  #28  
Old 10-20-2011, 11:05 PM
Diego Diego is offline
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Join Date: Nov 2010
Posts: 2,137
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Sorry, forgot to answer the rest . . .

It's not open to the public, and it's in Michigan. Their website has some good info, but not the info you're looking for:

http://www.gmheritagecenter.com/

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