Greg Working on the McMurdo SDI
McMurdo SDI in the GI Machine Shop
McMurdo SDI Etalon Chamber
Pneumatics on the McMurdo SDI
GI Machine Shop Crew with the McMurdo SDI
McMurdo SDI Fore-Optics, Being Tested in Fairbanks
McMurdo SDI Being Tested in the GI Machine Shop
Mark, Bertrand and the McMurdo SDI
