colour variations on ivory

[Sajen]

Hello Gustav,

I think that this hilt have a natural patination and nobody have done some home work on it. I have seen and read that Cirebon ivory handles are colered original black but I never have seen this by Madura handles. It is until today a mystery for me why some ivory handles after years still have a nearly white/cream colour and others are very dark. See for example this two Donoriko handles from my collection.

Best,

Detlef