The ornamental design for a fingercap of an artificial hand, as shown and described.
2. Finger cap of artificial hand.
2.1: Right
2.2: Left
2.3: Front
2.4: Back
2.5: Top
2.6: Bottom
2.7: Vertical end view
2.8: Horizontal end view at base end portion
2.9: Horizontal end view at middle portion
2.10: Horizontal end view at tip portion
2.11: Perspective
The product shown in figs. 2.1 to 2.11 is a finger cap of an artificial hand; the finger cap is to be mounted on a movable finger of an artificial hand.