The ornamental design for a weighing apparatus and instrument, as shown and described.
FIG. 1 is a perspective view of an embodiment of a weighing apparatus;
FIG. 2 is front view of the weighing apparatus of FIG. 1;
FIG. 3 is a side view of the weighing apparatus of FIG. 1;
FIG. 4 is a side view of the weighing apparatus of FIG. 1;
FIG. 5 is a rear view of the weighing apparatus of FIG. 1;
FIG. 6 is a top view of the weighing apparatus of FIG. 1;
FIG. 7 is a bottom view of the weighing apparatus of FIG. 1;
FIG. 8 is a perspective view of another embodiment of a weighing apparatus; and,
FIG. 9 is a rear view of the weighing apparatus of FIG. 8.
The broken line showing of structural features is included for the purpose of illustrating non-claimed subject matter and forms no part of the claimed design.