Cool 🙂
I'm not sure if it's the same thing you're talking about Bonne, but some cars actually had a 'backdrive' rod. It connected to what looked like linkage for an automatic transmission, and it actually connected to the column like an automatic trans shift rod. It would move the column collar to reverse, and I'm not positive but it may have also required you to put it in neutral to lock the column & take the key out.
I'm not sure if it's the same thing you're talking about Bonne, but some cars actually had a 'backdrive' rod. It connected to what looked like linkage for an automatic transmission, and it actually connected to the column like an automatic trans shift rod. It would move the column collar to reverse, and I'm not positive but it may have also required you to put it in neutral to lock the column & take the key out.