Vintage Crystal Door Knob
Antique Crystal Door Knobs : Vintage Crystal Door Knob
Quote from Article entitled Antique Crystal Door Knobs:
The invention of the door knob and the internal mechanics that allows for the easy locking and unlocking of entranceways changed the way doors were designed. Plus, the use of the door knob allowed for interior doors to be practical since they could be opened from both sides easily.
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