BURR 1- 2-3
(Admiral Makarov’s or Devil’s type knot)
The node is formed from six bars of square section. The bars have voids through which they are interlocked in the centre of the node. One bar has no voids; it is laid in the node the last, and when the parts are disassembled, it is removed first.
The author of this puzzle is unknown. It appeared many centuries ago in China