Bardou and Sons
Telescope Type: Floor-Standing Refracting
Country of Origin: France Date: c. 1890-1910
Objective Diameter: 4-inch (100-mm) OTL：55 "
Telescope Type: Floor-Standing Refracting
Country of Origin: France Date: c. 1890-1910
Objective Diameter: 4-inch (100-mm) OTL：55 "