I knew the job was dangerous when I took it ...
- Jul 19, 2004
- Reaction score
- Out of Bounds
This shape doesn't exclude the possibility the object was a WW2-era beach defense obstacle.The article states it is 3-sided ( "Elle possède trois faces lisses")
There was a mass-produced and commonly deployed variation on the Czech Hedgehog consisting of steel beams welded into a tetrahedral structure which was often coated in concrete. The tetrahedral shape provides 3 faces intersecting at each vertex.
This obstacle type was called a 'Tetrahydra'.
Here's a photo of 3 such Tetrahydras removed from the D-Day beaches.
As was the case for other defensive obstacles, there were variants.