Telespectroscope, constructed for the Lick Observatory by J. A. Brashear, Allegheny [Pa., U.S.A.] (titre original)
![Telespectroscope, constructed for the Lick Observatory by J. A. Brashear, Allegheny [Pa., U.S.A.] (titre original)](https://bibnum.obspm.fr/files/large/4b8966ec99da8ae4ca15d44d4323881413052b26.jpg)