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DOORKNOB MECHANISM<br />
The interior components of a doorknob<br />
This doorknob uses a simple mechanism with a screw-style axle.

Fphoto-15218001B-1RM.jpg

DOORKNOB MECHANISM
The interior components of a doorknob
This doorknob uses a simple mechanism with a screw-style axle.

Copyright:© 1980 Richard Megna - Fundamental Photographs

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