Known as " stacked gauges" in 69. They also came with an in dash tach in the left pod in the instrument panel. Someone started reproducing them some years back but I had heard they stopped production a couple years ago and I haven't heard any one else picking up the slack yet but if classic says they will have them in a couple months well it must be true. I think they were advertised for $695 last time.
I remember years ago I new a guy that paid $2400 for an original set and the spent another half of that having them refurbished. Of course that was before the reproduction ones came out.