Clavis Ciceroniana, sive, Indices rerum et verborum philologico-critici in opera Ciceronis - Ernesti, Johann August 1707-1781 (Leipzig Martinus, 1739)
various later editions, see https://books.google.be/books?id=QyE9AAAAcAAJ
a dictionary of words used in the writings of Cicero
Ex libris Julius Gertig (plate), J. C. Albino (?), 1738 (manuscript) & Wolfgang Vogler, 1920 (manuscript)
Keywords: Cicero, Marcus Tullius -- 106-43 BC; 18th Century (1701-1800); Philosophy; Dictionary; Linguistics; Leipzig (Germany)