e/Clebsch surface

Information
has gloss	eng: In mathematics, the Clebsch diagonal cubic surface, or Kleins icosahedral cubic surface is a cubic surface studied by and all of whose 27 exceptional lines can be defined over the real numbers. The term Kleins icosahedral surface can refer to either this surface or its blowup at the 10 Eckardt points.
lexicalization	eng: Clebsch surface
instance of	c/Algebraic surfaces