16cm long, chamber is 1.8cm, thats me using a ruler stick.. number 25 is stamped on the under shank. and on the box. That might be the shape number? Made in Tanganyika. For the difference of African vs. Turkish meer, I'll leave that to Fred for an expert answer. But generaly I think that African meer is more compact than turkish, thus not the same breathing effect. Then again, that could be all wrong, You'll need to ask the expert here.
Thanks for the comments!