Originally Posted by Stoney

There is a website http://warrelcis.eu that has a ton of this stuff but the most surprising is a Russian pilot of a WW@ Lend Lease Hawker Hurricane that crashed in the Swamps around Murmansk and when located and the aircraft excavated, his body was found preserved due to the lack of oxygen and the tannic acid of the swamp water.
His body was supponificated or turned into a type of gelatin soap. You can see the detail of his face and his uniform is perfect. Only his feet are missing where they hit the rudder controls in the cockpit and were cut off.

Hurricane wreck with pilot recovery. Northern Russia at War relics forum