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  • Description is exactly "Photographs and memorabilia from Alvin Gallagher (Sr. Design & Mechanical Engineer). Includes Mark I, detector, spectrometer, and SPEAR photos."

2021-001 Gallagher Photographs and Realia

Photographs and memorabilia from Alvin Gallagher (Sr. Design & Mechanical Engineer). Includes Mark I, detector, spectrometer, and SPEAR photos.