The ornamental design for a truegimbaledminer's lamp, as shown and described.
FIG. 1 is a front elevational view of the true gimbaled miner's lamp,
showing my new design;
FIG. 2 is a top plan view of the lamp;
FIG. 3 is a perspective view from the right front side of the lamp.
A perspective view from the front left of the lamp would be a mirror image
of FIG. 3. The bottom of the lamp is flat, as is the back of the wall
bracket.