File Slides In: Detroit Observatory (University of Michigan) records, 1860-2004 (majority within 1994-2001) » Historical, 1860-2004 » Audiovisual Materials
File Unidentified slides of graphs and data, from McMath-Hulbert Observatory? 35 slides (approximate) Box 18 In: Detroit Observatory (University of Michigan) records, 1860-2004 (majority within 1994-2001) » Historical, 1860-2004 » Audiovisual Materials » Slides
File Glass lantern slides 11 slides Box 27 In: Detroit Observatory (University of Michigan) records, 1860-2004 (majority within 1994-2001) » Historical, 1860-2004 » Audiovisual Materials
File Halley's Comet In: Detroit Observatory (University of Michigan) records, 1860-2004 (majority within 1994-2001) » Historical, 1860-2004 » Audiovisual Materials » Glass lantern slides
Container May 5, 1910 In: Detroit Observatory (University of Michigan) records, 1860-2004 (majority within 1994-2001) » Historical, 1860-2004 » Audiovisual Materials » Glass lantern slides » Halley's Comet
Container May 8, 1910 In: Detroit Observatory (University of Michigan) records, 1860-2004 (majority within 1994-2001) » Historical, 1860-2004 » Audiovisual Materials » Glass lantern slides » Halley's Comet
Container May 9, 1910 In: Detroit Observatory (University of Michigan) records, 1860-2004 (majority within 1994-2001) » Historical, 1860-2004 » Audiovisual Materials » Glass lantern slides » Halley's Comet
Container May 25, 1910 In: Detroit Observatory (University of Michigan) records, 1860-2004 (majority within 1994-2001) » Historical, 1860-2004 » Audiovisual Materials » Glass lantern slides » Halley's Comet
Container May 26, 1910 2 slides In: Detroit Observatory (University of Michigan) records, 1860-2004 (majority within 1994-2001) » Historical, 1860-2004 » Audiovisual Materials » Glass lantern slides » Halley's Comet
Container May 27, 1910 In: Detroit Observatory (University of Michigan) records, 1860-2004 (majority within 1994-2001) » Historical, 1860-2004 » Audiovisual Materials » Glass lantern slides » Halley's Comet