Also known as "Марс Рекордс"
On many releases in the beginning of the record (usually unlisted 0 track) sounds announcement with words like: "Firm Mars Records presents..." Even if release doesn't contains any logos of Mars Records but with announcement listed above so Mars Records can be used as a label of the release.
Please use Mars Records as a label only if you're sure that the release belongs to Mars Records.
Check if any logos available or sounds announcement with words like: "Firm Mars Records presents..."