The 
configuration of ten lines intersecting
three at a time in 10 points which arises in Desargues'
theorem.
Its Levi graph is the Desargues graph.
Desargues Configuration
See also
Configuration, Desargues Graph, Desargues' TheoremExplore with Wolfram|Alpha
References
Coxeter, H. S. M. "Self-Dual Configurations and Regular Graphs." Bull. Amer. Math. Soc. 56, 413-455, 1950.Cite this as:
Weisstein, Eric W. "Desargues Configuration." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/DesarguesConfiguration.html