There are 3 designs of indicia whose face value is forty-two cents, each of which is distinctive enough that it can be identified by examining the images below.

Elk	design U197	You have identified design #U197 diagnostic for Scott #U663 (printed in green and black on white paper).
Sunflower	design A3309	You have identified design #A3309 diagnostic for Scott #U665 (multicolored on white paper).
The Great Seal of the United States	design UO37	You have identified design #UO37 diagnostic for Scott #UO94 (printed in blue and red on white paper).