I bought my tr3 in 1971 and it had one key that locked and unlocked, the doors, glovebox, trunk, plus worked the ignition. My plan is to rebuild the broken trunk lock, so it works with that key. I would send it out, but too expensive. I asked a local guy and he said there is a broken cheap cast pot metal peg in back that is broken and cannot be fixed. I assumed if I had the tumbles out and moved them to a new block perhaps I could get back to original.
steve