Information on my "new" Camillus #4

[dogngun]

Just bought a fairly large older Camillus lockback stamped #4. I remember seeing these knives in shops years ago, but can't remember when (getting old).
ADDED: The blade is etched "Sword" with crossed swords, blade tang is marked Camillus Ney York USA in 3 lines. Handle is plain looking wood with large brass rivets and large squared off brass bolsters with a lanyard hole.
Any information on them is appreciated.

Thanks.

mark