How to date (powder) horn?

[fernando]

Originally Posted by BBJW

If this is Portuguese my question would be when did muzzle loaders stop being in common use? At any rate they are hard to date.
Cheers
BBJW

I'm afraid that would be a very contingent reasoning
Besides, i am not trying to find how late it is, but how early it could be, if you know what i mean
...Something like early, mid or end XIX century, or even end XVIII century, which would be not so probable ... i would think ?
I realized the aspect of the horn and or its decoration and trimings would help to define an aproximate age.