About the Manual This manual is part of the Ruby SuperSystem reference manual set and provides specific information on the Point of Purchase (POP) Discount function. Summary of Contents for VeriFone GemStall Ruby SuperSystem GemStall Petroleum/C-Store Division 300 South Park Place Blvd., Suite 100 Clearwater, FL 33759 (727) 953-4000 Office (727) 532-4001.
