Below are some scans of playing cards... Playing cards can help pinpoint changes in casino marketing with logo changes. Chips don't seem to change logo's as quickly sometimes.

The card on the left with the steer head was from 1987 - When Summa still owned the property. Of all the older Frontier playing cards I have they say "Frontier Hotel" - The steer logo was used throughout the eighties. The Frontier also used the "F" logo and a combination of the "F" logo and steer logo on some card designs. But the older cards always said "FRONTIER HOTEL"

The card in the middle was from late 1988 - After the Elardi's purchased the property - Notice the Hotel was dropped and at the bottom it says "Hotel and Gambling Hall" at the bottom

The card on the right is from 1991 - Notice that the "F" logo has become part of the name.