FIG. 1 is a rear perspective view of a storage trunk for a pickup truck embodying my new design;

FIG. 2 is a perspective view thereof with the lid in open condition;

FIG. 3 is a side elevation view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a rear elevation view thereof; and

FIB. 6 is a fragmentary bottom plan view thereof.