Tweeter ID Help

[M.Yu]

I was wondering if anyone know what brand this tweeter is.
It came from a Norman Labs Model 8 and is labeled made in Belgium.

I think it is some type of Phillips tweeter but not sure the model.

Any help is appreciated.

 

[Nat]

The red dot and the backplate remind me of Philips tweeters, but the front plate does not.

 

[M.Yu]

I think they are the same as or similar to these from a Norman 7:
http://www.audiokarma.org/forums/attachment.php?attachmentid=448919&d=1376515330