New York Public School Door Knob 

This knob is made of solid brass. 

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The overall height of knob is 2 1/4" and the depth is 1 5/8".

The hole for the spindle is 3/8" in diameter

The shank diameter is just over 7/8".

In as found condition with some minor tarnishing on the surface.  No cleaning attempted. 

Please look at all of the pictures before you purchase.