In Praise of the Long Refractor - Page 2 - Refractors - Cloudy Nights
Movers | Nature
400 Years of the Telescope
5" Clark refractor from John Briggs' collection
Trevor Observatory
Alvan Clarke 8” refractor from 1878, still in use by Skyscrapers, Inc in RI : r/telescopes
Trevor Observatory
9" F/18 "Jumbo" - Stallion Springs, Ca - Photo Gallery - Cloudy Nights
Alvan Clark 6-in Refractor | Wellesley College
400 Years of the Telescope
Selecting Our Meade LX200 - Frosty Drew Observatory & Sky Theatre
The Alvan Clark telescope at Seagrave Observatory, circa late 1960s
Big Cigar Gallery
J. B. ALLEN, Springfield Mass. Early American monocular microscope, c. 1858
ALVAN CLARK (1804-1887),GEORGE BASSETT CLARK (1827-1891)AND ALVAN GRAHAM CLARK
ALVAN CLARK (1804-1887),GEORGE BASSETT CLARK (1827-1891)AND ALVAN GRAHAM CLARK
Alvan Clark - Wikipedia
Alvan Clark - Linda Hall Library
Alvan Clark 24" Refractor (Lowell Observatory) Review
Selecting Our Meade LX200 - Frosty Drew Observatory & Sky Theatre
Alvan Clark refractor? - Classic Telescopes - Cloudy Nights
Alvan Clark 24" Refractor (Lowell Observatory) Review
Post a Photo of a Historic Telescope - Page 7 - Classic Telescopes - Cloudy Nights
William Optics66SD vs. Televue Pronto/Ranger - Refractors - Cloudy Nights
Post a Photo of a Historic Telescope - Page 7 - Classic Telescopes - Cloudy Nights
