Hello David,
like you know I am not an expert but what I can see by the pictures is that the motif at hilt, bone (look indeed like bone) pice and band at the scabbard is adequate, isn't it? And the silver band at the scabbard seems to have some age and my guess is that the fittings are not recent but I think later work as the blade. What I can see by the pictures it is a nice looking kris and to use the words from Rick, when the price isn't over the moon.....
Regards,
Detlef