De Constantini Magni, Christianor. impp. primi, duobus nummis : qvorum priorem, accepto sacro-sancto Baptismate, posteriorem autem, paterne facta Imperii sui anno ejusd. ultimo, inter tres filios partione, is jusserit signari epistolae duae ...
A 1693 Latin numismatic treatise on two coins of Constantine the Great, printed in Frankfurt and Leipzig by Johann Friedrich Heckel and Johann Bielcke for scholars of ancient coinage. Its pictures are small woodcut-style engravings of coins and medals, some with ornate initial letters and Latin inscriptions, showing emperors, figures and reverse designs in tidy circular frames a designer could borrow for medallion or seal motifs.
