Ivory or bone ?

[thinreadline]

Originally Posted by Sajen

Colin refer to the Schreger lines. But I've seen a similar dagger with an early sort of plastic which imitates this Schreger lines. Can you use the hot needle test at an unvisible place?

Regards,
Detlef

Thanks Detlef , tried that and no its not plastic ... I didnt think they would use silver hallmarked mounts on a plastic grip , but you never know of course .

[asomotif]

Ivorine, as used on kitchenknifes, can look very much like this.
Sometimes including the lines.
However, I think that ivorine would not crack like this handle

Best regards,
Willem

[Ibrahiim al Balooshi]

Originally Posted by asomotif

Ivorine, as used on kitchenknifes, can look very much like this.
Sometimes including the lines.
However, I think that ivorine would not crack like this handle

Best regards,
Willem

I looked at two replacement substances for Ivory... Ivorine which was invented in 1899 thus too late for this..and Bakelite also a later invention... I have to say I think Ivory in this case... I cannot see the full stamps thus unable to say who the maker may be ...

[thinreadline]

Originally Posted by Ibrahiim al Balooshi

I looked at two replacement substances for Ivory... Ivorine which was invented in 1899 thus too late for this..and Bakelite also a later invention... I have to say I think Ivory in this case... I cannot see the full stamps thus unable to say who the maker may be ...

Salaams Ibrahiim , the maker is Henry Wigful of Sheffield

[Helleri]

I don't think this is ivory. Some translucence along the edges of cracks, dings, and scratches causes ivory to typically show hotter coloration there (red and orange, not black as is shown here). I think the grain is also too strait (with no intersection) and uninterrupted. Have you done the rub test?

[VANDERNOTTE]

ivory indee

[thinreadline]

Originally Posted by VANDERNOTTE

ivory indee

What is ivory indee please ?

[thinreadline]

Originally Posted by Helleri

I don't think this is ivory. Some translucence along the edges of cracks, dings, and scratches causes ivory to typically show hotter coloration there (red and orange, not black as is shown here). I think the grain is also too strait (with no intersection) and uninterrupted. Have you done the rub test?

What is the rub test ?

[Bob A]

Originally Posted by thinreadline

What is the rub test ?

I vaguely recall that one can rub suspect ivory until it is warmed, then smell it; a camphor odor would indicate that it was a man-made imitation. I don't have a reference for this, my failing memory will have to serve.

[Sajen]

Originally Posted by asomotif

Ivorine, as used on kitchenknifes, can look very much like this.
Sometimes including the lines.

This was what I've meant, I think that the chance is great that we are looking at this material by this dagger. But I could be wrong.
Sure you only can get when you would remove the upper silver cap.

Regards,
Detlef