La Femme Invisible et son secret dévoilés
A short French exposé of 1800, credited to E. J. Ingannato, revealing the mechanics behind the Parisian "invisible woman" speaking-tube illusion for curious showgoers and rival conjurors. The single engraved plate is a cutaway building section: an accomplice speaks into a tube upstairs while spectators cluster below, useful for diagrammatic interiors, figures in Empire dress, and engraved captions in script.
