Sand chains...

[Hanno Spoelstra]

Originally posted by Richard Farrant
These are Parsons "Oriam" type non-skid chains. Parsons were a well known British maker of tyre chains. They were British Army issue along with the normal types of chains, ie. no pads. They were particularly good in very soft ground as the action of the pads was comparable to that of a track shoe grouser. These chains could be used on sand, mud, slippery grass, snow, ice, etc.

Parsons "Oriam" type non-skid chains in use to battle Italian mud (source).