Hook-knife of Soviet VDV (today: Russian Airborne Troops) is definetely one of those.
Knife of Airborne Forces of the USSR is a non-folding with symmetrical blade that has a double-sided sharpening.
The cutting edge of the blade is concave.
The tip of the blade is slightly rounded for safety reasons.
However, this "weakness", many eliminated themselves, this sharpening of the blade by hand until the razor state.
Blade length 130 mm or 9'', handle lenght 100 mm or 5 1/8''. Each knife has a serial number.
Bakelite handle, white or brown, fastened with two rivets with a hole for lanyard.
Main purpose of this knife is cutting parachute straps in unpredictable situations.
This days military hook knives are very different.
$120+shipping
http://www.ebay.com/itm/252283266705
