He stood up, placed his foot against the strip, and pulled on the metal knob.
These gave the semblance of a slight scratch, quite similar to others that were already on the metal knob.
On the desk a hooded typewriter took form, then the metal knob of a communicating door.
I closed my hand around the metal knob, turned it, and pulled at the door.
After the cold air cleared his head, he went for the metal knob.
I took a breath, then I reached forward and groped the metal knob in my hand.
The handle on the door of each office was a large metal knob with a pin-tumbler lock in the middle.
Approach, please, one of you, and grasp with a hand the projecting metal knob.
From each side of his right fist protruded a diamond-shaped metal knob.