The last of Bunkall’s photogravures, titled Ascension, is an image he photographed of the north tower of Chartres Cathedral, his favorite. The spire is a wonderful example of early French gothic architecture. Bunkall chose an early form of photography, the photogravure, to depict the spire floating upwards, again referencing the released soul.

The photogravure began as an engraving technique known as photoglyphic engraving, patented in the mid 1800s. Photogravure is an intaglio printmaking process using a copper plate, coated with a light-sensitive gelatin tissue which has been exposed to a film positive and then etched into the plate. The printer forces ink into the depressed areas of the plate, 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 and reproduces the detail and continuous tones of the photograph.