This brass Gregorian telescope, which dates from the last quarter of the 18th century, has a metal primary mirror 2⅜ inches diameter, and a smaller secondary that is adjusted by the rod that runs along the tube. The stand is adjustable in altitude and azimuth. The “G. Adams N˚ 60 / Fleet Street London” inscription could refer to George Adams or to his son of the same name, both of whom worked at this address.
Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.
If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.