Ortus Castoris ratibus propitius, Ratisbonæ è specula pieria Collegii Societatis Jesu in reverendissimo ac serenissimo principe, ac domino ... Joanne Theodoro ... tubo historico-poëtico observatvs, quando sideri fraterno serenissimo Clementi Augusto, in statione episcopatûs Ratisbonensis, successit
A Latin emblem book issued in 1721 by the Jesuit college at Regensburg from the press of Johann Baptist Lang, celebrating Johann Theodor of Bavaria's succession to the prince-bishopric and addressed to a learned courtly readership. The plates are small circular copperplate emblems, each framed by double rules and lettered with a Latin motto, showing rigged ships on hatched seas, rocky outcrops, star fields and radiating suns, useful as roundel devices, nautical silhouettes and engraved star-and-ray motifs.
