Is this one of David-Andersen's marks?

[muraille]

The maker's mark on this Norwegian pin looks a lot like the older David-Andersen mark but it is not exactly the trident shown on the website. Is this a variation of it, or is this pin by someone else? If so, by whom? Thank you in advance for your help. The link below will take you to a larger version of the signature:
http://s1287.photobucket.com/user/murai ... 1.jpg.html

[dragonflywink]

It's a variant of David-Andersen's 'hammer & tongs' mark. Nice piece, looks familiar...hard for me to see, is the center guilloché ?

~Cheryl

[muraille]

Thank you Cheryl. Yes, the center is guilloche. The pin looks so unusual (to me) for a David-Andersen that I had doubts about the hallmark, It was not identified as such and I bought it based on the maker's mark, thinking it had to be D-A's, but it was hard to see. Mireille