2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/36368A global solution of the Einstein equations is given, consisting of a perfect fluid interior and a vacuum exterior. The rigidly rotating and incompressible perfect fluid is matched along the hypersurface of vanishing pressure with the stationary part of the Taub-NUT metric. The fluid core generates a negative-mass NUT space-time. The matching procedure leaves one parameter in the global solution.4 pages, sprocl.sty included, to appear in the Proceedings of the ERES98 ConferenceGeneral Relativity and Quantum Cosmologytext