Fuses are modern -- or can be -- as in "fusebox." Now K&T is a very old technology popular in homes built from 1880-1930. K&T wiring is very obvious. You have exposed wires wrapped around porcelain knobs. This should be visually obvious if you take a look in the basement.
If you are looking for "issues" related to this, that's better left to an experienced inspector who has done historical homes before.... more