2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/33993We present an example that non-isometric space-times with non-vanishing curvature scalar cannot be distinguished by curvature invariants.2 pages, LaTeX, reprinted from Abstracts Conf. GR 14 (1995)General Relativity and Quantum CosmologyOn space-times which cannot be distinguished by curvature invariantstext