Two golf club shaped hat pins. One is a bronze or brass metal head in the shape of putter. The other appears to be an abalone or mother-of-pearl-type shell formed in the shape of an iron. They rest inside the sterling silver holder/dish that is marked on its base "Patent approved for International W. Sterling" along with a crescent moon.
There is a small chip in the very top of the hosel on the shell hatpin, but the hosel is not cracked. There does appear to be a small inlaid piece of wire on the side of the neck, as shown in the last few images.