Amethyst Cambridge Candholders

Can anyone else verify these are Cambridge?

 

The bottom part of this candleholder/epergne look like yours. Hard to tell for certain because in the crystal glass, much of the detail is not visible. Hopefully someone here has access to old Cambridge catalogs.

http://www.saintstevensthingery.com/mybackpages/?tag=cambridge-glass

 

I have a Cambridge book and it does show this pattern. I even see it on replacements. But I don't see the amethyst anywhere...

 

Oh .... I see .... Sorry, can't really help you. Their molds were bought up by several different glass factories weren't they?

 

Thanks Skeez, after looking in my books I thought they were.