Dear Frank and others                                            I recently visited the refurbished Clock Museum at the Guildhall Library in London where Lo and behold is an Elias Allen horizontal with reversed compass markings. I did not spot any facilities for positioning a vertical rod as an azimuth marker for the sun but will visit again shortly and report my findings. The desciption card merely says there is a mistake in the compass markings!                                              John Moir                  

Reply via email to