Oh, as far as value is concerned - about $15 if it works correctly, isn't too brassy, and isn't missing any endcaps. I can see from your pic that at least one of them is intact.
From '62 on they didn't have end caps.
Before 62, the end caps were used to cover the folded extensions of the center bar. Starting in 62, they got rid of these extensions, and instead they soldered the center bar directly to a single layer of polished metal at the end of the head.