There are one large image and several thumbnail. One of the tittle is Filedoor knob with lock usajpg wikimedia commons. What happened to the lock on this door ask metafilter. Model no bao master lock. Baldwin prestige alcott polished brass bedbath knobatk rdb. Lockey edigital er electronic door knob lock with remote lock.
Large picture on this page is categorize in locking door knob.