Scabbard and Sheaths from Viking and Medieval Dublin, Esther Cameron, 2007, Dublin.
Frustratingly (but typically I think) neither the NMI or the RIA have advertised the fact that it's been published. It isn't listed with the others on the RIA shop website, the NMI shop doesn't HAVE a website, it's not on Amazon or Oxbow Books. My copy arrived from the National Museum or Ireland's shop firstname.lastname@example.org
a couple of weeks ago. They said that the book on the weapons is due out at the end of the year but expected publication dates haven't been very reliable to date so I'm not holding my breath.
Excellent book. Thoroughly recommend it.