Check out these 14 vintage door knobs. The shortest door knob measures approximately 2 1/8" in diameter and 2" front to back.
The spindle measures approximately 1 1/2 in length. When both door knobs and spindle are put together, it measures approximately 5 in length. The longest door knob measures approximately 2 1/8" in diameter and 1 7/8" front to back.
The spindle measures approximately 2 in length. When both door knobs and spindle are put together, it measures approximately 6 in length. All 14 vary in spindle length as they don't look similar in appearance. Some are black in color while others appear to have a brass finish.
As shown in the photos, all 14 door knobs have some imperfections due to previous use. Several are also missing screws that hold the spindle in place. With some tlc, they would look wonderful in your home. Be prepared with the title.