A big voice showcased in Lina Bruna Rasa's vocal range video! She possessed a well-developed chest voice and exhibited higher within her range! She could have gone easily above C6 with her thick head voice, but probably there's missing material from her.
It used to be rather commonplace. Lina Bruna Rasa (this video's subject), Florica Christoforeanu, Fedora Barbieri, Giulietta Simionato, Gabriella Besanzoni, Elena Obraztsova, Oralia Dominguez, and quite a few others. It doesn't occur as much because the current paradigm accepts as a given that chest voice is largely harmful in women's voices. Nonsense.