If you haven’t heard about the name Astrum, you should; it is from Ukraine and continuing the Svema tradition. They offer a range of colour, black and white films.
I purchased, through a friend, some Astrum films, one of which is some Astrum Foto-200 in medium format. It is an ISO 200 black and white negative film, with a twist.
It does not have backing paper! It is just a long piece of 120 film rolled up in the spool… but it doesn’t stop it to be a great film.