Skirted 1976 Fisher Pierce Photocell

Look at this beauty! My first skirted photocell. These things look really cool! This isn't a complete dayburner but when it sees light the relay spazzes out and makes a horrid noise and the light its controlling flashes erratically. That seems to be one of the common modes of failure for Fisher Pierce photocells. Oh well. Certainly displays well on its own. I won't be attempting to repair this one since it's not a simply CdS swap (I'm out of Fisher Pierce CdS cells anyway).