Influences, Yerkes Ellen Sauchelli - Stage Door Designs 12/7/25 Influences, Yerkes Ellen Sauchelli - Stage Door Designs 12/7/25 Yerkes Built at the turn of the 20th century, today the 40-inch Great Refractor still operates. Read More
Influences, Yerkes Ellen Sauchelli - Stage Door Designs 12/7/25 Influences, Yerkes Ellen Sauchelli - Stage Door Designs 12/7/25 Yerkes Built at the turn of the 20th century, today the 40-inch Great Refractor still operates. Read More
