Yep, and 1100's.
It used a normally-open pressure switch fitted to the galley that the oil filter bypass valve fed, so it informed that the filter was being bypassed. It did come on where a vehicle had been left without a filter change for a long time.
I think it was actually a clever idea, and I'm surprised it wasn't more common.
By contrast, base model Ford Cortinas of that same era didn't even have an oil pressure warning!
Chris