Forum Library shows that we had a beam of light shining on this subject about 10 years ago ..
Please see
http://vikingsword.com/vb/showthread.php?t=17160
Note also at this reference the excellent anc clear detail of what I have noted is part of the Royal Signature or TUGHRA hammered into the Quillon ends on sword examples in that thread. It also contains the fine picture of the Ivory comb with gold inlay typical on some Zanzibar Nimcha examples etc etc
Peter Hudson.