This is an emblem book on Leopold III, patron saint of Austria and Vienna. It holds 15 etchings composed in honor of two Hungarian nobles. The only clue to the printmaker is one plate signed B. Denner, leading some to think of the German portrait painter Balthasar Denner (1685-1749). Unfortunately, he would have been only seven years old at the time of publication.
Perhaps it is a later edition with added plates by Denner but comparing ours to another copy is going to be difficult. There are only two other copies of this volume recorded; one is at the Universiteit Utrecht in The Netherlands and the other in Wienbibliothek im Rathaus (Vienna City Library) in Austria.