looks like a slightly less decorated version of this one. 13" overall in scabbard, out it's 12" overall (8" blade, 4" handle)
camel bone is a popular knife scale material, it can also be dyed to just about any color, stained heat treated (scorched) and carved to look like stag or impala horn, etc. giraffe bone is another, probably not found in afghan circles. maybe sheep, goat, camel, horse... and of course the 'I' word which i shall not apply to mine.