Instrument
- 1 in Cook Lens #832 Series renamed from ac-a2
- 1-inch2
- 1.5 in Cooke "Long Focus"2
- 1.5 inch Ross (short focus)2
- 1.5-inch Cooke Lenses2
- 1.5-inch Ross-Xpress2
- 10-inch Metcalf Triplet2
- 11-inch Draper Refractor2
- 12-inch Metcalf Doublet2
- 13-inch Boyden Refractor2
- 13-inch Boyden Refractor (spectrum plates)2
- 16-inch Boller & Chivens2
- 16-inch Metcalf Doublet (Refigured after 3500)2
- 2.5 inch Cooke Lens2
- 2.5 inch Voigtlander (Little Bache or "Bachito")2
- 2.5-inch Ross Portrait2
- 2.5-inch Ross Portrait Lens2
- 2.6-inch Zeiss-Tessar2
- 2.8-inch Kodak Aero-Ektar2
- 200 inch Hale Telescope2
