The second of the etchings, Epilogue, was chosen as a subject by the artist because it represents an important theme in his work. The suspended dirigible symbolizes departure, and is an example of the spiritual direction of the artist’s thinking; the evocation of travel, a quiet journey over time.

Copper plate engraving known as intaglio engraving began in the mid 1400s. The intaglio technique is the incision, or biting by acid, of a design into a metal plate. The printer forces ink into these depressed areas, wipes the surface of the plate and passes it through a press with a sheet of archival paper. This process forces the paper into inked incisions, where it picks up the ink. Aquatint uses powdered rosin which is acid resistant in the ground to create a tonal effect.