From what type of whale did the jaw bone that sat on top of North Berwick Law come?

Question

The last whale bone to be placed on top of this extinct volcano was erected in 1933 and was removed in 2005 after rotting away. A Fibreglass replica of this bone has just been put in place, modelled on the original bone. But from what type of whale did this bone come?

Answer 1

I haven't seen it in person, but from the pictures I think it was a Southern Right whale.  Or could be from a Blue whale -- hard to tell.