Reply To: An old brass refractor. › Forums › Telescopes › An old brass refractor. › Reply To: An old brass refractor. 5 July 2022 at 1:13 pm #611269 Dr Paul LeylandParticipant Thanks Alan. Is it on-line or on-paper only? I will go looking for it. Paul Added in edit: found it on-line. This reply was modified 2 years, 8 months ago by Dr Paul Leyland.
