Physical interpretation of the NUT family of solutions

We demonstrate by the use of Komar integrals that the aggregate mass of two semi-infinite sources which are present in the general family of NUT solutions is a negative nonzero quantity, while the corresponding angular momentum always assumes an infinitely large value except for one particular case when it is equal to zero. In the latter case the solution is equatorially antisymmetric and represents the exterior field of two identical counter-rotating semi-infinite sources possessing negative masses and infinite angular momenta which are attached to the poles of a static Schwarzschild-like finite rod of positive mass.