INTERESTING DESIGN!...AND NEVER USED.
 
Interesting extended blade.  When closed it extends past the handle.  Original design and not a blade replacement.  Locks in place with the hinged thumb lever.  Brass and beautiful wood.  Stainless steel blade.
 
10 1/4" total length when open.  6 3/4" long when closed.
 
I would consider this a folding knife and not a pocket knife as I doent think you would want to place it in your pocket!
 
 
Location D2