This mesh-pattern solid gutty ball is not your normal mesh pattern ball. It is actually a far more rare line-cut ball!  Such balls were a major step in the evolution of the golf ball, replacing the hand-hammered ball.  

A line-cut ball was originally molded in a smooth gutty mold and then removed and placed into a small cutting lathe designed to score the surface of gutta percha golf balls.  The ballmaker would turn the lathe's handle and that caused the machine to rotate the ball, cutting lines into its surface.  After the ballmaker cut one set of lines around the circumference of the ball, he would remove the ball, turned it 90 degrees, and then cut in a second set of lines.  Typically, the resulting mesh pattern would be reasonably symmetrical, often times making it hard to distinguish a line cut ball from a molded mesh ball.

The lines are actually quite shallow, nothing like molded lines.  Upon close inspection of the mesh pattern, variations in the consitency of the "squares" are clearly present.  While well used, this ball ball is solid and still has some of its original paint.  A great piece of golf ball history.