It looks like a shaving brush
My guess is that it has boar bristles based on the pictures.
They do seem to be fairly soft to me a good or bad thing? I do not know
you are correct no markings but still not real stiff ..not as soft as mine or my sons buts still fairly soft . I m working a lather now and will let it sit then rinse and dry it I will just keep that one
Thank you I will post pictures tomorrow and see what it looks like