1. Faces of mathematical prodigies Collection: Early 20th Century Engineering Lantern Slides Set: Face-Related Data Date: undated Format: Image Agent: unknown
2. Drawing of man illustrating "will regions" Collection: Early 20th Century Engineering Lantern Slides Set: Face-Related Data Date: undated Format: Image Agent: unknown
3. Drawings of three heads linking shape of head to various personality characteristics. Collection: Early 20th Century Engineering Lantern Slides Set: Face-Related Data Date: undated Format: Image Agent: unknown
4. Drawings of nine heads connecting different shapes to various personalities. Collection: Early 20th Century Engineering Lantern Slides Set: Face-Related Data Date: undated Format: Image Agent: unknown
5. Drawings of three faces side profile. Labelled convex, plane, and concave. Collection: Early 20th Century Engineering Lantern Slides Set: Face-Related Data Date: undated Format: Image Agent: unknown
6. Drawings of the faces of two men - the salesman type and the executive type, with comments on facial features. Collection: Early 20th Century Engineering Lantern Slides Set: Face-Related Data Date: undated Format: Image Agent: unknown
7. Drawings of the faces of two men - financial type and professional type, with comments on facial features. Collection: Early 20th Century Engineering Lantern Slides Set: Face-Related Data Date: undated Format: Image Agent: unknown
8. Drawings of multiple faces labeled convex to concave, mapped to personality traits. Collection: Early 20th Century Engineering Lantern Slides Set: Face-Related Data Date: undated Format: Image Agent: unknown
9. Drawings of two faces with labels on chin and jaw. Collection: Early 20th Century Engineering Lantern Slides Set: Face-Related Data Date: undated Format: Image Agent: unknown
10. Drawing of one face with labels on chin, jaw, and cheek. Collection: Early 20th Century Engineering Lantern Slides Set: Face-Related Data Date: undated Format: Image Agent: unknown
