Appears to be two variations of the 6th issue Seneca Allegany card with the GC manufacturer's mark.

One variation has the website as "www.SenecaCasinos.com" while the other variation has the website as "SenecaCasinos.com" without the "www". The casino logos on the reverse are also switched around slightly.

Both variations of the 6th issue are now listed in the slot guide and scans are on the ChipGuide now.