The Telescopes and Equipment of Sirius Observatory Alvan Clark 6" Refractor on John Byrne equatorial mount Alvan Clark 4" Refractor on original no. 5 mount Alvan Clark Transit Of Venus heliostat Clark Telescopes and accessories 12.3" Peridier Calver reflector on #2 Pedestal Observatory mount 12" Fecker Classical Cassegrain on equatorial mount 6" Brashear Refractor on rare crescent equatorial mount 8" Peridier Couder Double Refractor on T. Cooke equatorial mount, modified by Manent 2.5" Troughton & Sims transit 3" Abraham Zenith Circle 3" refractor on equatorial mount 3" refractor on alt-az mount Peridier Filar Micrometer by Manent 10" Gaertner coelostat Zeiss stereo (blink) comparitor Drum chronograph Brandis Transit Spectrohelioscope French Spectroscope Restorations for others, and how to restore your instrument Custom made Alt-Az mount for 4" refractor Replacing a spider web in a filar micrometer Everything else