There are 4 designs of indicia whose face vale is thirty-four cents, each of which is distinctive enough that it can be identified by examining the images below.

Eagle	design U187	You have identified design #U187 diagnostic for Scott #U646 (printed in blue-gray and gray on white paper).
Lovebirds	design U188	You have identified design #U188 diagnostic for Scott #U647 (printed in rose and dull violet on white paper).
Community Colleges	design U189	You have identified design #U189 diagnostic for Scott #U648 (printed in dark blue and orange-brown on white paper).
Great Seal of the United States	design UO37	You have identified design #UO37 diagnostic for Scott #UO90 (printed in blue and red on white paper).