FIG. 1 is a front perspective view of the design for a mandoline of the invention;
FIG. 2 is the lower out feed end elevational view of the mandoline of FIG. 1;
FIG. 3 is front elevational view of the mandoline of FIG. 1;
FIG. 4 is the raised in feed end elevational view of the mandoline of FIG. 1;
FIG. 5 is a back elevational view of the mandoline of FIG. 1;
FIG. 6 is top plan view of the mandoline of FIG. 1; and,
FIG. 7 is bottom plan view of the mandoline of FIG. 1.
The broken line structure shown in FIGS. 1, 2, 6, and 7 forms no part of the claimed design.