Welcome to AAPK!
With the blades halfway open (standing out from the handle at 90-degrees), study the front and back of the tangs.
If it says "Germany" anywhere on it, then it was made after 1890.
If not, then it was likely made before that date.
It has beautiful horn handles. There are little bugs that like to chew on horn, so it is wonderful to see some that old without holes in them! That knife is a wonderful heirloom.
Jesus is life.
Everything else is just a hobby.
~Reverand