NavList thread: Time & Navigation-Untold Story.....@ Smithsonian
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28 Dec 2012, 21:54 | Bruce J. Pennino
29 Dec 2012, 00:04 | Frank Reed
29 Dec 2012, 00:11 | Frank Reed
29 Dec 2012, 16:13 | Alan S
29 Dec 2012, 16:34 | Sean C
29 Dec 2012, 18:14 | Dave Walden