Another caltrop thread

[M. Demetrius]

And naturally, these are no longer in mint condition. Any of them could be straightened up to be sharp point up. What I was originally looking at was that three of the points/junctions were clearly different from the fourth. Gives the impression that the 3 were either split (a pain to do) or that they were flat welded together to make the 4th point.

In other words, not the same as the way I've made them, splitting on both ends of a flat bar. Btw, how tall do you suppose these are?