Figure 17. Luksch disk, made by Joseph Luksch about 1880 and used in that yearaboard the HERTA, the yacht of Prince John II of Liechstenstein. It was provided with five interchangeable 36-cm reflecting plates of different metals, somepainted. After
4/4/2019 1:50:13 PM
Photographer: P. Roggero
Credit: Oceanographic Museum of Monaco
Subject: Oceanography
Subject: Historical instruments