There is a small black dot on each pole.  This is the only identifying mark that Patrick included on the hand-hammered balls he produced in the 1890s.  According to Kevin McGimpsey in The Collectible Golf Balls Directory, Folio 1: Gutta Percha Golf balls 1845-1903, Patrick used a mold to make this ball.

This ball remains in great shape.  It has just a few strike marks and nearly all of its original paint is still present. Of all the molded gutty balls that were made, a molded "hand-hammered" ball is among the rarest of patterns.