Help identifying this sterling necklace?

[trialanderrin]

Picked this necklace up in a jar of jewelry at Goodwill over the weekend. Each link is a riveted spiral. Looks like it says MNW (I think), .925, a pineapple stamp (maybe?), some sort of script looking stamp, and A11. All I know is that it's sterling and the A11 means it was made in Sweden in 1999. The clasp is actually another spiral stamped 18k that you sort of thread onto another link. Never seen anything like this, maybe you can help identify? Thanks!

 

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[tamrock]

Looks like Scandinavian MOD. to me? Norway, Denmark, Finland & "SWEDEN"?? .. That's where I'd start to look. It appears to have a signature.

 

[trialanderrin]

I figured it was Swedish, but the problem is the way the stamp was marked made it register twice and I can't tell what it's supposed to say! I think it starts with an H?