Which Diana Pendulum?

[MartinM]

Picked this up in an auction a while back and am just now getting to it.
It didn't have a pendulum.
Can anyone tell me which of the various Diana pendulums should go with it?

 

[etmb61]

I believe you need # 107 as shown here:



Eric

 

[MartinM]

I actually do have a spare one of those, But, I was really hoping that wouldn't be correct. I don't like it in the little television style case.

 

[whatgoesaround]

I have never seen this version before; a cool, modernistic style. How scarce would this case be?