A turned leg junction in our trio lighting gantry, system 35 range, S35T47. This is a rather special turned leg junction, designed to be used to create a second tier display area of some kind in truss structures. It would most probably be seen in a six legged structure sending up a support to carry a central banner frame display area.
Note that the horizontal extending struts from the center of this gantry junction, you may need a 153mm straight beam to connect to your leg. Dims of 500mm x 500mm, supplied with the required conicals, pins and clips.