The ornamental design for an instrumentcase, as shown and described.
FIG. 1 depicts a perspective view of an instrument case.
FIG. 2 depicts a front view of an instrument case.
FIG. 3 depicts a back view of an instrument case.
FIG. 4 depicts a left side view of an instrument case.
FIG. 5 depicts a right side view of an instrument case.
FIG. 6 depicts a perspective rear view of an instrument case with legs held within the instrument case.
FIG. 7 depicts a perspective rear view of an instrument case with the legs in an extended position.
FIG. 8 depicts a top view of an instrument case.
FIG. 9 depicts a bottom view of an instrument case.
FIG. 10 depicts a perspective view of an instrument case supported by extended legs.
FIG. 11 depicts a perspective view of an instrument case with the top cover removed and suspended by the instrument case and the instrument case supported by extended legs; and,
FIG. 12 depicts a perspective view of an instrument case with the top cover removed and the instrument case supported by extended legs.