While the photos at the D.M.V. (New York) will still be taken in color, the engraving is done in grayscale, hence the Ansel Adams feel.
Engraving then, is, in brief terms, the Art of Scratch.john ruskin
"Dozens of Judensaus... intersect with the portrayal of the Jew as a Christ killer. Various illustrations of the murder of Simon of Trent blended images of Judensau, the devil , the murder of little Simon himself, and the Crucifixion . In the seventeenth-century Engraving from Frankfurt ... a well-dressed, very contemporary-looking Jew has mounted the sow backward and holds her tail, while a second Jew sucks at her milk and a third eats her feces. The horned devil, himself wearing a Jewish badge, looks on and the butchered Simon, splayed as if on a cross, appears on a panel above."
Teamwork is at the core of this craft, with the process comprising seven stages: designing and drawing, carpentry, handcutting and shaping of motifs, scooping the exact pattern on the rosewood surface, fixing and inlaying followed by sand papering, polishing, Engraving the details and the final finish.