A knife every serious collector wants to have, H Boker & Co has manufactured quality knives for over a century.  Based on the tang stamp, handle material, and patina, this knife was probably made in the early 1900's.  Amazingly, it still has good snap and negligible wobble.  There is a small chunk taken out of the handle.  See photos for more detail.

This would make a fantastic gift for a knife collector in your life, or gift it to yourself!