How change vintage locks to two-sided?
We are using a door salvaged from my grandmother's house for a newly added bathroom. It came with a thumb turn on one side and no way to open the lock on the other side. Since this is to be a bathroom door I want it to be openable from the outside, but on top of that, the way the door is oriented in our home, the thumb turn would be on the outside.
I've searched all the restoration hardware places (Rejuvenation, House of Antique Hardware, Van Dyke's, etc.) but I can't figure out what configuration allows for a lock on the inside that is unlockable on the outside. A skeleton key on the outside is fine with me, I just want some mechanism so that someone doesn't get locked in there. I'm planning to replace the door knob and have no problem replacing the lock set if necessary, but I don't even know what to buy.