The ornamental design for front silhouette plaque, as shown and described.
FIG. 1 is a prespective view of the front silhouette plaque according to an embodiment.
FIG. 2 is a front elevation view of the front silhouette plaque of FIG. 1.
FIG. 3 is a top view of the front silhouette plaque of FIG. 1.
FIG. 4 is a side elevation view of the front silhouette plaque of FIG. 1.
FIG. 5 is a bottom view of the front silhouette plaque of FIG. 1; and,
FIG. 6 is a rear elevation view of the front silhouette plaque of FIG. 1.
The broken line showing of the antlers and other elements are included for the purpose of illustrating environment and forms no part of the claimed design.