... This looks like the cheap Camillus copy I bought at the local flea market in 1989... for about $5.00 ... 
I never knew it was a rare piece of military history... 
From the listing: "Vintage US Vietnam Era Japanese Made Pilot Survival Fighting Knife, Minty"
This vintage Vietnam Era Japanese made pilot survival fighting knife is a rare and highly collectible item for militaria enthusiasts.
The knife features a sharp edged blade, a saw back spine and a sturdy handle, making it an ideal tool for survival in extreme conditions. It even come with a sharpening stone with original sheath. It is an original piece from the Vietnam War era, made in Japan by very skilled knife smiths, this is one incredible knife.
The knife has been kept in mint condition and is a great addition to any collection of militaria items. It was made in Japan and has been crafted to the highest standards of quality and durability.
This is a must-have item for anyone interested in the history of the Vietnam War and the brave pilots who fought in it.
https://www.ebay.com/itm/166476761078?
