It might well be the "swan song" of a veteran artist at such work.
"Holbein"
Beatrice Fortescue
But a fragment or two and the drawings for them show how truly grand the two works were which Holbein had probably already intended should be his swan-song as Holbein Basiliensis.
"Holbein"
Beatrice Fortescue
The boat glided on as gracefully as a swan, and in a few minutes it passed through the jagged rocks that formed the mouth of the tunnel and floated into a broad, open river.
"Dot and Tot of Merryland"
L. Frank Baum