The ornamental design for an emergencysignallingsleeve to be worn on the arm, as shown and described.
FIG. 1 is an elevation view in a flattened condition of an emergency
signalling sleeve to be worn on the arm of this invention, the opposing
side being a mirror image of that shown;
FIG. 2 is a perspective view thereof illustrating the manner of use of the
design, with the broken line showing for illustrative purposes only and
forming no pat of the claimed design;
FIG. 3 is a further perspective view thereof; and,
FIG. 4 is a reduced elevation view thereof showing the manner of use of the
design.