Arrangements of $4$ lines in general position

The number of ways of arranging $4$ straight lines in general position in the (affine) plane.

Updates

• Lower bound: $1$
  Reference unknown
  [via Number of ways of arranging n straight lines in general position in the (affine) plane. - OEIS]
• Upper bound: $1$
  Reference unknown
  [via Number of ways of arranging n straight lines in general position in the (affine) plane. - OEIS]