In the entire temp. range of the .hivin.42m phase, recently found in Cr3Br7O13Cl, an orthorhombic phase mm2 can be induced by an elec. field above a threshold. This field-induced phase transition is characterized by antiferroelec.-like double hysteresis loops, transforming to a ferroelec. single hysteresis loop on cooling the crystal down to the field-free .hivin.42m -> mm2 transition temp. at .apprx.160 K.