I recently grabbed a bow light base and burgee pole off a Dorsett Catalina on e-bay. A little digging and I've learned the parts are made of pot metal called "Zamack" and are from the 1959 Wilcox-Crittenden Sea Flair line. They are pretty worked and will likely restore poorly because of the pits.
Since my bow light is so close to my windshield I'm thinking of modifying the extra bow handle I have to accept the Wilcox-Crittenden burgee pole.