Iron ring for door handle?
I am making an old world/storybook type front door for my house. I took an adze to some aged rough-sawn oak. I have an idea that I'd like to be able to grasp an iron ring on the exterior and turn it to unlatch the door.
I have seen a ring handle for a gate latch, but the latch is on the same side as the ring. I would need the latch/bolt on the inside (I would prefer a rim lock on the inside, but I could do a mortise if necessary).
I can't say I've searched the Internet exhaustively, but it seems like most wrought iron rings to be found are just knocker or pull types (except for the gate latch/same side).
Has anyone ever seen this done? If there's no ready-made product, could a machinist bore the back of the ring base to receive the square spindle that turns a regular bolt, for a sane price?