Title
Poetae Christiani Veteres. Volume 2 (of 3).
Publisher
Venice: Aldus Manutius,
Date
June 1502.
Description
This is the first appearance of the dolphin and anchor as Aldus’s printer’s mark, in the second volume of the Poetae Christiani. The initial version of what would be used regularly over the decades is this smaller form of the dolphin and anchor within twin rules that enclose all four sides of the woodblock engraving. Intended for use in quartos and octavos, it was developed by June 1502, when it appeared here, and began to appear more generally in Aldines from later that year.
Source
From the collections of The Grolier Club.