signed, dated and described on the reverse:: 'MARTYNA CZECH | "HEROICZNA" /z cyklu "Gatunek wymarły" | olej na płótnie | 2019 | 100x120 cm'. signed on the reverse: 'MARTYNA CZECH'. signed, dated and described on the stretcher: 'MARTYNA CZECH "HEROICZNA" /z cyklu "Gatunek wymarły" | 100x120 cm, olej na płótnie, 2019'