A similar system was used on some early B747Fs.
Meh think it was an option on Classic 747 pax and combi birds.
I flew some in the sandbox that had every option in the catalog, not only the weight and balance readout, but also Cat III, no glass only steam gauges and 3 autopilots, decision height 20’ and your were supposed to touch down during a missed approach, then take off again to complete the missed.
Analog magic, I am telling you.