The search is made within the catalogue of the instruments collected in the Astronomical Museum of Brera.

You may consult the following collections:
. Catalogue of the Volumes of the Ancient Library (XVIII-XIX cent.)
. Catalogue of the Cartographic Collection ( XVII-XX cent.)
. Inventory of the Historical Archive (from 1726 to 1917)
. Catalogue of the Scientific Correspondence (from 1726 to 1809)
. Catalogue of the Photographic Collection ( XVIII-XX cent.)

The search is done within the historical celestial atlases by Hevelius, Doppelmeyr, and Flamsteed, and the terrestrial one by Sanson.