Hi Colin,
Thank you for your comment. Here some close up pics as requested. In one photo it would appear that under the grip (close to the spear head, I am not sure if this is simply binding or a hand grip?) there is another set of binding underneath.
Yes the material that is additionally binding the spear head appears to be slightly foreign to the original design. Although it is slightly loose, it still feels quite strong and appears to have been soaked in some type of resin
Kind regards
Chris