Just a side-note, as your question was already answered, but Sabbath usually used Laney for the recordings, at least the first two records. Guitars AND Bass
Thought I heard he used marshall or hiwatt. He was endorsed by Orange back in the day but Iommi said he wasn't a fan. He didn't always use Laney. I just can't remember what he used prior. Then again I could be wrong.
Laney Supergroups, and on later albums a Klipp 2 (in the Ozzy era) Those Supergroups are for all intents and purposes Marshall SuperLead/Bass clones, he had a germanium rangemaster to push the front end