BAD rock, to be specific - proto-mullet AOR stuff. And Pittsburgh Steeler tributes, and plenty of 'ethnic' (Polka, etc), just about every thing you would expect from a vanity operation. The only garage records I kept were the Actions (from Ohio) and the Badd Ladds.
The numbering system has the year as the first two digits. The last two digits incremented with each release, so 7515 would be the 15th record of 1975. I don't know if this is true for every year, but seems to be a pretty accurate rule
- George