Looks like it's in the NuBus adapter for a Q610 or 6100.
To find out which card it is, pop it into a NuBus Mac and run SlotInfo from the Gauge Utility Suite or TechTool. You might also check the NuBus Mafia Card Scan collection over on 'fritter.
To find out which card it is, pop it into a NuBus Mac and run SlotInfo from the Gauge Utility Suite or TechTool. You might also check the NuBus Mafia Card Scan collection over on 'fritter.