The ornamental design for a waitstaffsignalingdevice, as shown and described.
FIG. 1 is a perspective view of a wait staff signaling device showing our new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a front elevation view thereof, the rear elevation view being a mirror image; and,
FIG. 5 is a right side elevation view thereof, the left side elevation view being a mirror image.
The device comprises a base and three colored illuminating indicators wherein the indicator surfaces of the design are lined for colors white, blue, and green.